How many Photoelectric effect questions are there for 9702?

This page collects 5 recent Cambridge Physics (9702) past-paper questions tagged to Photoelectric effect. Each links straight to instant marking against the official 9702 scheme.

How are Photoelectric effect answers marked?

Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.

Where can I learn Photoelectric effect first?

Start with the free Physics lesson on Photoelectric effect, then come back and drill past-paper questions under timed conditions.

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9702 · topic questions

Photoelectric effect

Physics5 questions

5 past-paper questions on Photoelectric effect

9702/41 · October/November 20243 marks
For ultraviolet radiation with a frequency of 11 × 10¹⁴Hz, calculate the maximum speed of the emitted electrons.
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9702/41 · October/November 20243 marks
On Fig. 8.1, sketch the variation with f of the maximum kinetic energy EMAX of the emitted electrons. Use the space below for any…
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9702/42 · May/June 20253 marks
Explain, with reference to photons, why V_S depends on the frequency of the incident electromagnetic radiation.
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9702/41 · October/November 20242 marks
Calculate the work function energy of magnesium.
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9702/42 · May/June 20252 marks
State what is meant by the photoelectric effect.
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Question stems are shortened previews. Open a question to attempt the full version and have it marked.

Worked example

What a lost mark actually looks like

This answer reaches the right coordinates and still drops a mark — the conclusion is stated, but never justified. Examiners pay for the reasoning, not the answer.

MARKED

80%

Strong

M1dy/dx = 3x^2 - 12x + 9M1 earned
M1(x - 1) $(x - 3) = 0$ M1 earned
A1 $x = 1$ or $x = 3$ A1 earned
B1(1, 5) is a maximum and (3, 1) is a minimumB1 not earned

B1 — withheld
You stated the nature of each point correctly, but stated it without justification. This mark needs the reasoning shown — either evaluate the second derivative (d²y/dx² = 6x − 12, giving −6 at $x = 1$ and +6 at $x = 3$ ) or show a sign change of dy/dx either side of each point. An unsupported assertion earns nothing here even when the conclusion is right.

Photoelectric effect (9702) past-paper questions — marked instantly

These are real Cambridge Physics past-paper questions on Photoelectric effect. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9702 mark scheme so you see exactly where the marks are won and lost on this topic.

Mark your answer →Learn Photoelectric effect 9702 grade boundaries

Frequently asked questions

How many Photoelectric effect questions are there for 9702?: This page collects 5 recent Cambridge Physics (9702) past-paper questions tagged to Photoelectric effect. Each links straight to instant marking against the official 9702 scheme.
How are Photoelectric effect answers marked?: Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Photoelectric effect first?: Start with the free Physics lesson on Photoelectric effect, then come back and drill past-paper questions under timed conditions.