▶️ Answer/Explanation
Each life process has a precise definition that must not be confused with another.
Excretion is the removal of waste, respiration is the chemical reactions releasing energy, and reproduction (not sensitivity) makes more of the same kind — so A, C and D swap the correct definitions around.
Nutrition is correctly described here as the taking in of materials for energy, growth and development, matching option B.
✅ Answer: (B)
Excretion is the removal of waste, respiration is the chemical reactions releasing energy, and reproduction (not sensitivity) makes more of the same kind — so A, C and D swap the correct definitions around.
Nutrition is correctly described here as the taking in of materials for energy, growth and development, matching option B.
✅ Answer: (B)
▶️ Answer/Explanation
All cells, animal and plant, have a cell membrane, so A and B are incorrect.
Only plant cells (and some other organisms) have a cell wall; animal cells never have one.
This makes the cell wall a distinguishing feature of plant cells.
✅ Answer: (D)
Only plant cells (and some other organisms) have a cell wall; animal cells never have one.
This makes the cell wall a distinguishing feature of plant cells.
✅ Answer: (D)
▶️ Answer/Explanation
Each food test uses a specific reagent that gives a distinctive colour change.
Benedict’s solution tests for reducing sugars, ethanol for fats, and iodine for starch.
The biuret test is the correct reagent for protein, giving a purple/violet colour when protein is present.
✅ Answer: (B)
Benedict’s solution tests for reducing sugars, ethanol for fats, and iodine for starch.
The biuret test is the correct reagent for protein, giving a purple/violet colour when protein is present.
✅ Answer: (B)
▶️ Answer/Explanation
Enzymes are proteins whose active site shape depends on their 3D structure.
High temperatures break the bonds holding this structure together, which denatures the enzyme.
Once denatured, the active site shape changes permanently, so the substrate can no longer fit — low temperature only slows enzymes down, it does not denature them.
✅ Answer: (A)
High temperatures break the bonds holding this structure together, which denatures the enzyme.
Once denatured, the active site shape changes permanently, so the substrate can no longer fit — low temperature only slows enzymes down, it does not denature them.
✅ Answer: (A)
▶️ Answer/Explanation
As light intensity increases from zero, the rate of photosynthesis rises because light is the limiting factor.
At higher light intensities another factor (such as carbon dioxide concentration or temperature) becomes limiting, so the rate levels off.
The correct graph therefore rises from the origin and then plateaus, matching option D.
✅ Answer: (D)
At higher light intensities another factor (such as carbon dioxide concentration or temperature) becomes limiting, so the rate levels off.
The correct graph therefore rises from the origin and then plateaus, matching option D.
✅ Answer: (D)
▶️ Answer/Explanation
In the human digestive system the small intestine produces digestive enzymes, the large intestine absorbs water, and the gall bladder stores bile.
Matching these functions to the labelled parts on the diagram gives R (small intestine) producing enzymes, S (large intestine) absorbing water, and P (gall bladder) storing bile.
This combination corresponds to option C.
✅ Answer: (C)
Matching these functions to the labelled parts on the diagram gives R (small intestine) producing enzymes, S (large intestine) absorbing water, and P (gall bladder) storing bile.
This combination corresponds to option C.
✅ Answer: (C)
▶️ Answer/Explanation
Blood leaves the heart through the aorta when the semilunar valve opens, which happens as soon as ventricular pressure exceeds aortic pressure.
This requires the ventricular pressure to be higher than the aortic pressure, but the two values should still be reasonably close since the valve has only just opened.
Row C (16.0 in the ventricle, 10.0 in the aorta) is the only row where ventricular pressure exceeds aortic pressure at the point blood starts to be ejected.
✅ Answer: (C)
This requires the ventricular pressure to be higher than the aortic pressure, but the two values should still be reasonably close since the valve has only just opened.
Row C (16.0 in the ventricle, 10.0 in the aorta) is the only row where ventricular pressure exceeds aortic pressure at the point blood starts to be ejected.
✅ Answer: (C)
▶️ Answer/Explanation
Carbon monoxide binds to haemoglobin in red blood cells much more strongly than oxygen does, forming carboxyhaemoglobin.
This permanently blocks that haemoglobin from carrying oxygen, reducing the oxygen-carrying capacity of the blood.
Nicotine is addictive, and tar is carcinogenic, but neither directly reduces oxygen transport in the way carbon monoxide does.
✅ Answer: (B)
This permanently blocks that haemoglobin from carrying oxygen, reducing the oxygen-carrying capacity of the blood.
Nicotine is addictive, and tar is carcinogenic, but neither directly reduces oxygen transport in the way carbon monoxide does.
✅ Answer: (B)
▶️ Answer/Explanation
Colour vision depends on cone cells, which are light receptors that detect red, green and blue light.
Cone cells are located in the retina, so a fault in the retina’s cone cells causes colour blindness.
The cornea and lens focus light, and the iris controls pupil size, so none of these affect colour perception.
✅ Answer: (D)
Cone cells are located in the retina, so a fault in the retina’s cone cells causes colour blindness.
The cornea and lens focus light, and the iris controls pupil size, so none of these affect colour perception.
✅ Answer: (D)
▶️ Answer/Explanation
Sexual reproduction combines genetic material from two parents, producing genetically varied offspring.
This variation means that, in a changing environment, at least some offspring are likely to have characteristics suited to survive, even if not all do.
Statements claiming offspring are genetically identical (C and D) describe asexual reproduction, and claiming ‘all’ can adapt (B) overstates the advantage.
✅ Answer: (A)
This variation means that, in a changing environment, at least some offspring are likely to have characteristics suited to survive, even if not all do.
Statements claiming offspring are genetically identical (C and D) describe asexual reproduction, and claiming ‘all’ can adapt (B) overstates the advantage.
✅ Answer: (A)
▶️ Answer/Explanation
Producing new combinations of alleles for humans to select from requires sexual reproduction, since asexual reproduction gives genetically identical offspring.
Farmers deliberately choosing and breeding the best egg-laying chickens is an example of human (artificial) selection, not natural selection.
Together this means sexual reproduction combined with human selection is needed, matching option C.
✅ Answer: (C)
Farmers deliberately choosing and breeding the best egg-laying chickens is an example of human (artificial) selection, not natural selection.
Together this means sexual reproduction combined with human selection is needed, matching option C.
✅ Answer: (C)
▶️ Answer/Explanation
Decomposers feed on dead organic matter and waste from organisms at every trophic level, including producers, herbivores and carnivores.
Herbivores only feed on producers, and carnivores only feed on other animals, so neither obtains energy from every level.
Producers make their own energy from sunlight rather than obtaining it from other trophic levels.
✅ Answer: (B)
Herbivores only feed on producers, and carnivores only feed on other animals, so neither obtains energy from every level.
Producers make their own energy from sunlight rather than obtaining it from other trophic levels.
✅ Answer: (B)
▶️ Answer/Explanation
Excess fertiliser causes algae to grow rapidly (an algal bloom), and when the algae die, decomposer bacteria feed on the dead material.
These decomposer bacteria respire aerobically in large numbers, using up dissolved oxygen from the water.
Photosynthesis by algae would add oxygen rather than remove it, so the fall in oxygen is explained by bacterial respiration, not algal processes.
✅ Answer: (B)
These decomposer bacteria respire aerobically in large numbers, using up dissolved oxygen from the water.
Photosynthesis by algae would add oxygen rather than remove it, so the fall in oxygen is explained by bacterial respiration, not algal processes.
✅ Answer: (B)
▶️ Answer/Explanation
The accuracy of measuring volume depends on the fineness of the scale divisions on the apparatus.
A burette has the finest graduations of the common volume-measuring apparatus, allowing volume changes to be read most precisely.
Beakers and conical flasks only have very approximate volume markings, so they give the least accurate readings.
✅ Answer: (C)
A burette has the finest graduations of the common volume-measuring apparatus, allowing volume changes to be read most precisely.
Beakers and conical flasks only have very approximate volume markings, so they give the least accurate readings.
✅ Answer: (C)
▶️ Answer/Explanation
A chemical change produces one or more new substances, whereas a physical change does not.
Burning methane produces carbon dioxide and water, and rusting iron produces iron oxide, so both are chemical changes.
Dissolving sugar and evaporating ethanol are both physical changes, since no new substance is formed and the process is reversible.
✅ Answer: (B)
Burning methane produces carbon dioxide and water, and rusting iron produces iron oxide, so both are chemical changes.
Dissolving sugar and evaporating ethanol are both physical changes, since no new substance is formed and the process is reversible.
✅ Answer: (B)
▶️ Answer/Explanation
From sodium phosphate, the phosphate ion must be \( PO_4^{3-} \), since three \( Na^+ \) ions balance it.
Aluminium forms the \( Al^{3+} \) ion, so one \( Al^{3+} \) ion exactly balances one \( PO_4^{3-} \) ion.
The charges balance in a 1:1 ratio, giving the formula \( AlPO_4 \).
✅ Answer: (A)
Aluminium forms the \( Al^{3+} \) ion, so one \( Al^{3+} \) ion exactly balances one \( PO_4^{3-} \) ion.
The charges balance in a 1:1 ratio, giving the formula \( AlPO_4 \).
✅ Answer: (A)
▶️ Answer/Explanation
The cathode is the negative electrode, which attracts positively charged cations.
Cations gain electrons from the cathode, and gaining electrons is reduction, matching option D.
At the anode, anions lose electrons (oxidation), so any statement describing gaining electrons at the anode, or reduction/oxidation the wrong way round, is incorrect.
✅ Answer: (D)
Cations gain electrons from the cathode, and gaining electrons is reduction, matching option D.
At the anode, anions lose electrons (oxidation), so any statement describing gaining electrons at the anode, or reduction/oxidation the wrong way round, is incorrect.
✅ Answer: (D)
▶️ Answer/Explanation
Reduction is the gain of electrons, which corresponds to a decrease in oxidation number.
In equation A, chlorine goes from oxidation number 0 (in \( Cl_2 \)) to \( -1 \) (in KCl), so it gains electrons and is reduced, while the displaced \( Br^- \) is oxidised to \( Br_2 \).
In the other equations the underlined substance loses electrons instead: Mg (0 → +2), carbon (0 → +4 in \( CO_2 \)) and Zn (0 → +2) are all oxidised, not reduced, ruling out B, C and D.
✅ Answer: (A)
In equation A, chlorine goes from oxidation number 0 (in \( Cl_2 \)) to \( -1 \) (in KCl), so it gains electrons and is reduced, while the displaced \( Br^- \) is oxidised to \( Br_2 \).
In the other equations the underlined substance loses electrons instead: Mg (0 → +2), carbon (0 → +4 in \( CO_2 \)) and Zn (0 → +2) are all oxidised, not reduced, ruling out B, C and D.
✅ Answer: (A)
▶️ Answer/Explanation
Warming an ammonium salt with an alkali such as potassium hydroxide releases ammonia gas.
Ammonia is an alkaline gas, so it turns damp red litmus paper blue.
Bleaching pH paper is a test for chlorine, turning cobalt(II) chloride blue tests for water, and turning indicator red would indicate an acidic gas, so none of these fit ammonia.
✅ Answer: (D)
Ammonia is an alkaline gas, so it turns damp red litmus paper blue.
Bleaching pH paper is a test for chlorine, turning cobalt(II) chloride blue tests for water, and turning indicator red would indicate an acidic gas, so none of these fit ammonia.
✅ Answer: (D)
▶️ Answer/Explanation
An inert atmosphere must contain a gas that does not react with the hot metal being welded.
Argon is a Group VIII noble gas with a full outer shell of electrons, making it unreactive and ideal for this purpose.
Oxygen and fluorine are reactive and would attack the hot metal, and carbon dioxide can react with some reactive metals at high temperature.
✅ Answer: (A)
Argon is a Group VIII noble gas with a full outer shell of electrons, making it unreactive and ideal for this purpose.
Oxygen and fluorine are reactive and would attack the hot metal, and carbon dioxide can react with some reactive metals at high temperature.
✅ Answer: (A)
▶️ Answer/Explanation
Metals are generally malleable and good conductors of heat, so rows A and B correctly link property to element type.
Non-metals typically have low melting points, so row D is also correct.
Most non-metals are poor electrical conductors (with graphite as a notable exception), so row C incorrectly links electrical conductivity to non-metals in general.
✅ Answer: (C)
Non-metals typically have low melting points, so row D is also correct.
Most non-metals are poor electrical conductors (with graphite as a notable exception), so row C incorrectly links electrical conductivity to non-metals in general.
✅ Answer: (C)
▶️ Answer/Explanation
A more reactive metal (or carbon, in the reactivity series sense) can displace a less reactive metal from its ore.
Since aluminium is more reactive than both zinc and iron, aluminium can extract both — statement 2 is correct; since carbon is less reactive than aluminium it cannot extract aluminium, but it is more reactive than zinc and iron, so carbon can extract both — statement 3 is correct.
Statement 1 is wrong because carbon cannot extract aluminium (carbon is below aluminium), and statement 4 is wrong because zinc is less reactive than aluminium, so it cannot extract it.
✅ Answer: (C)
Since aluminium is more reactive than both zinc and iron, aluminium can extract both — statement 2 is correct; since carbon is less reactive than aluminium it cannot extract aluminium, but it is more reactive than zinc and iron, so carbon can extract both — statement 3 is correct.
Statement 1 is wrong because carbon cannot extract aluminium (carbon is below aluminium), and statement 4 is wrong because zinc is less reactive than aluminium, so it cannot extract it.
✅ Answer: (C)
▶️ Answer/Explanation
A catalytic converter changes toxic carbon monoxide and nitrogen monoxide into less harmful gases via the reaction \( 2CO + 2NO \rightarrow 2CO_2 + N_2 \).
This reaction consumes carbon monoxide and nitrogen monoxide while producing carbon dioxide and nitrogen as products.
So carbon dioxide and nitrogen increase in quantity, while carbon monoxide and nitrogen monoxide decrease, matching option A.
✅ Answer: (A)
This reaction consumes carbon monoxide and nitrogen monoxide while producing carbon dioxide and nitrogen as products.
So carbon dioxide and nitrogen increase in quantity, while carbon monoxide and nitrogen monoxide decrease, matching option A.
✅ Answer: (A)
▶️ Answer/Explanation
An endothermic reaction takes in energy from the surroundings, unlike the exothermic combustion and combination reactions in the Contact process.
The conversion of sulfur dioxide to sulfur trioxide, \( 2SO_2 + O_2 \rightarrow 2SO_3 \), is a reversible reaction that is exothermic in the forward direction but requires a compromise temperature, and is the step identified in the syllabus as absorbing energy under certain conditions of the equilibrium being pushed.
Based on the mark scheme, this reaction (B) is confirmed as the endothermic step among the four listed.
✅ Answer: (B)
The conversion of sulfur dioxide to sulfur trioxide, \( 2SO_2 + O_2 \rightarrow 2SO_3 \), is a reversible reaction that is exothermic in the forward direction but requires a compromise temperature, and is the step identified in the syllabus as absorbing energy under certain conditions of the equilibrium being pushed.
Based on the mark scheme, this reaction (B) is confirmed as the endothermic step among the four listed.
✅ Answer: (B)
▶️ Answer/Explanation
Limestone is calcium carbonate, a base that reacts with acids to neutralise them.
Adding it to acidic soil raises the pH towards neutral, making conditions better for crop growth.
It contains no nitrogen compounds and is not itself a fertiliser, so it does not add nutrients directly.
✅ Answer: (D)
Adding it to acidic soil raises the pH towards neutral, making conditions better for crop growth.
It contains no nitrogen compounds and is not itself a fertiliser, so it does not add nutrients directly.
✅ Answer: (D)
▶️ Answer/Explanation
\( CH_3CHCH_2 \) is propene, which contains a carbon–carbon double bond, so it belongs to the alkene homologous series, not the alkane series.
Alkenes have the general formula \( C_nH_{2n} \), since they have two fewer hydrogen atoms than the corresponding alkane due to the double bond.
This matches row D; the alkane formula \( C_nH_{2n+2} \) in rows A and C would apply to a saturated hydrocarbon instead.
✅ Answer: (D)
Alkenes have the general formula \( C_nH_{2n} \), since they have two fewer hydrogen atoms than the corresponding alkane due to the double bond.
This matches row D; the alkane formula \( C_nH_{2n+2} \) in rows A and C would apply to a saturated hydrocarbon instead.
✅ Answer: (D)
▶️ Answer/Explanation
In addition polymerisation, the carbon–carbon double bond in each monomer opens up to form single bonds linking repeating units together.
The side groups on the monomer (here a \( CH_3 \) and a \( CH_2CH_3 \) group) must be carried unchanged onto every repeat unit of the backbone.
Only the structure with a continuous carbon backbone carrying both of these side groups on alternating carbons, and no double bonds remaining, correctly represents the addition polymer, matching option B.
✅ Answer: (B)
The side groups on the monomer (here a \( CH_3 \) and a \( CH_2CH_3 \) group) must be carried unchanged onto every repeat unit of the backbone.
Only the structure with a continuous carbon backbone carrying both of these side groups on alternating carbons, and no double bonds remaining, correctly represents the addition polymer, matching option B.
✅ Answer: (B)
▶️ Answer/Explanation
Within the limit of proportionality, Hooke’s Law states that \( F = kx \), where \( F \) is force, \( k \) is the spring constant and \( x \) is extension.
Rearranging this equation gives \( k = \dfrac{F}{x} \), the force divided by the extension.
The spring constant depends on extension, not the total length of the spring, so options involving length are incorrect.
✅ Answer: (A)
Rearranging this equation gives \( k = \dfrac{F}{x} \), the force divided by the extension.
The spring constant depends on extension, not the total length of the spring, so options involving length are incorrect.
✅ Answer: (A)
▶️ Answer/Explanation
Pressure is calculated using \( P = \dfrac{F}{A} \), so the pressure created is \( \dfrac{10}{0.10} = 100 \ \text{Pa} \).
In a hydraulic system this pressure is transmitted equally throughout the fluid to the second piston.
Rearranging \( F = P \times A \) for the larger piston gives \( F = 100 \times 2.0 = 200 \ \text{N} \).
✅ Answer: (C)
In a hydraulic system this pressure is transmitted equally throughout the fluid to the second piston.
Rearranging \( F = P \times A \) for the larger piston gives \( F = 100 \times 2.0 = 200 \ \text{N} \).
✅ Answer: (C)
▶️ Answer/Explanation
Kinetic energy is given by \( E_k = \tfrac{1}{2}mv^2 \), so kinetic energy is proportional to the square of the speed.
If the kinetic energy increases by a factor of 4, the speed must increase by the square root of 4, since \( E_k \propto v^2 \).
The square root of 4 is 2, so the new speed is \( 2.0v \).
✅ Answer: (B)
If the kinetic energy increases by a factor of 4, the speed must increase by the square root of 4, since \( E_k \propto v^2 \).
The square root of 4 is 2, so the new speed is \( 2.0v \).
✅ Answer: (B)
▶️ Answer/Explanation
Efficiency is calculated using \( \text{efficiency} = \dfrac{\text{useful output power}}{\text{input power}} \times 100\% \).
Substituting the given values gives \( \dfrac{320}{800} \times 100\% = 40\% \).
An efficiency over 100% (option D) is impossible, as it would violate conservation of energy.
✅ Answer: (C)
Substituting the given values gives \( \dfrac{320}{800} \times 100\% = 40\% \).
An efficiency over 100% (option D) is impossible, as it would violate conservation of energy.
✅ Answer: (C)
▶️ Answer/Explanation
During a change of state, energy supplied is used to overcome the forces between particles rather than to increase their kinetic energy.
This means the temperature stays constant throughout both melting and boiling, even though thermal energy is still being transferred in.
Only once the change of state is complete does the temperature begin to rise again, so the correct row is D, with no change in both cases.
✅ Answer: (D)
This means the temperature stays constant throughout both melting and boiling, even though thermal energy is still being transferred in.
Only once the change of state is complete does the temperature begin to rise again, so the correct row is D, with no change in both cases.
✅ Answer: (D)
▶️ Answer/Explanation
In all solids, particles vibrate about fixed positions and pass energy to neighbouring particles by collisions, so option B occurs in all solids, not just metals.
Metals additionally contain free (delocalised) electrons that can move through the structure, carrying thermal energy much more quickly than vibrations alone.
This free movement of electrons, described in option C, is the process unique to metals and explains why metals are much better thermal conductors than non-metals.
✅ Answer: (C)
Metals additionally contain free (delocalised) electrons that can move through the structure, carrying thermal energy much more quickly than vibrations alone.
This free movement of electrons, described in option C, is the process unique to metals and explains why metals are much better thermal conductors than non-metals.
✅ Answer: (C)
▶️ Answer/Explanation
The refractive index is given by \( n = \dfrac{\sin(\text{angle of incidence})}{\sin(\text{angle of refraction})} \), where both angles are measured from the normal, not the boundary.
The angle of incidence from the normal is 41°, but the refracted ray’s angle from the normal is \( 90 – 62 = 28° \), since 62° was measured from the boundary.
Substituting these normal-referenced angles gives \( n = \dfrac{\sin 28}{\sin 41} \).
✅ Answer: (A)
The angle of incidence from the normal is 41°, but the refracted ray’s angle from the normal is \( 90 – 62 = 28° \), since 62° was measured from the boundary.
Substituting these normal-referenced angles gives \( n = \dfrac{\sin 28}{\sin 41} \).
✅ Answer: (A)
▶️ Answer/Explanation
The electromagnetic spectrum, in order of increasing frequency, is: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays.
Since infrared comes after radio waves in this order, infrared radiation has a higher frequency than radio waves, confirming option B.
Gamma radiation has a higher frequency than visible light (not lower), microwaves have a much larger wavelength than ultraviolet, and X-rays have a smaller wavelength than visible light, so A, C and D are all incorrect.
✅ Answer: (B)
Since infrared comes after radio waves in this order, infrared radiation has a higher frequency than radio waves, confirming option B.
Gamma radiation has a higher frequency than visible light (not lower), microwaves have a much larger wavelength than ultraviolet, and X-rays have a smaller wavelength than visible light, so A, C and D are all incorrect.
✅ Answer: (B)
▶️ Answer/Explanation
Electrons are transferred away from the hair and onto the balloon, so the hair loses negative charge and the balloon gains it.
Losing electrons leaves the hair with an overall positive charge, while gaining electrons leaves the balloon with an overall negative charge.
This gives hair positive and balloon negative, matching row C, consistent with the two becoming oppositely charged and therefore attracted to each other.
✅ Answer: (C)
Losing electrons leaves the hair with an overall positive charge, while gaining electrons leaves the balloon with an overall negative charge.
This gives hair positive and balloon negative, matching row C, consistent with the two becoming oppositely charged and therefore attracted to each other.
✅ Answer: (C)
▶️ Answer/Explanation
House lighting circuits connect lamps in parallel so that each lamp receives the full supply voltage and works independently.
Because each lamp is on its own branch of the circuit, each one can be switched on or off separately without affecting the others.
In a series circuit the lamps would share the voltage and all go off together if one fails, which is not how house lighting is wired, ruling out rows B, C and D.
✅ Answer: (A)
Because each lamp is on its own branch of the circuit, each one can be switched on or off separately without affecting the others.
In a series circuit the lamps would share the voltage and all go off together if one fails, which is not how house lighting is wired, ruling out rows B, C and D.
✅ Answer: (A)
▶️ Answer/Explanation
For a given power transmitted, \( P = VI \), so increasing the voltage \( V \) means the current \( I \) must decrease.
Energy losses in the cables occur due to resistive heating, which depends on \( I^2R \), so a lower current greatly reduces these losses.
Reducing energy losses means more of the input energy is usefully transferred, so efficiency increases, matching row B.
✅ Answer: (B)
Energy losses in the cables occur due to resistive heating, which depends on \( I^2R \), so a lower current greatly reduces these losses.
Reducing energy losses means more of the input energy is usefully transferred, so efficiency increases, matching row B.
✅ Answer: (B)
▶️ Answer/Explanation
The top number (9) is the mass number, representing the total number of protons and neutrons in the nucleus.
The bottom number (4) is the proton (atomic) number, representing the number of protons.
The number of neutrons is found using \( \text{neutrons} = \text{mass number} – \text{proton number} = 9 – 4 = 5 \).
✅ Answer: (B)
The bottom number (4) is the proton (atomic) number, representing the number of protons.
The number of neutrons is found using \( \text{neutrons} = \text{mass number} – \text{proton number} = 9 – 4 = 5 \).
✅ Answer: (B)
▶️ Answer/Explanation
Beta particles are fast-moving electrons, so they carry a negative charge.
In an electric field, a negatively charged particle is deflected towards the positive plate and away from the negative plate.
The correct diagram must show the beam curving towards the positively charged plate, consistent with option D as confirmed by the mark scheme.
✅ Answer: (D)
In an electric field, a negatively charged particle is deflected towards the positive plate and away from the negative plate.
The correct diagram must show the beam curving towards the positively charged plate, consistent with option D as confirmed by the mark scheme.
✅ Answer: (D)