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Photoelectric effect: CAIE A‑Level Physics questions

Every CAIE A-Level Physics exam question on 22.2 Photoelectric effect, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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Calculations

266 questions

  1. Q8(a)

    Specimen · Paper 4

    2 marks22.2 Photoelectric effect
    The whole paper ↗
    Specimen Paper 4, question 8(a): Describe two phenomena associated with the photoelectric effect that cannot be explained using a wave theory of light. 1 2 [2]

  2. Q8(b)(i)

    Specimen · Paper 4

    1 mark22.2 Photoelectric effect
    The whole paper ↗
    Specimen Paper 4, question 8(b)(i): Identify the symbol m0. [1]

  3. Q8(b)(ii)

    Specimen · Paper 4

    1 mark22.2 Photoelectric effect
    The whole paper ↗
    Specimen Paper 4, question 8(b)(ii): The variation with 1 m of Emax for the metal surface is shown in Fig. 8.1. 4 Emax/ 10–19 J 3 2 1 0 1.5 2.0 2.5 3.0 3.5 4.0 1 / 106 m–1 λ Fig. 8.1 19 Use Fig. 8.

  4. Q8(b)(iii)

    Specimen · Paper 4

    3 marks22.2 Photoelectric effect
    The whole paper ↗
    Specimen Paper 4, question 8(b)(iii): Use the gradient of Fig. 8.1 to determine a value for the Planck constant h. Show your working. h = J s [3]

  5. Q8(c)

    Specimen · Paper 4

    2 marks22.2 Photoelectric effect
    The whole paper ↗
    Specimen Paper 4, question 8(c): The metal surface in (b) becomes oxidised. Photoelectric emission is still observed but the work function energy is increased. On Fig. 8.1, draw a line to show
All 5 questions on Photoelectric effect, as a list
  1. Specimen, Paper 4, Q8(a) (2 marks): Describe two phenomena associated with the photoelectric effect that cannot be explained using a wave theory of light. 1 2 [2]
  2. Specimen, Paper 4, Q8(b)(i) (1 mark): Identify the symbol m0. [1]
  3. Specimen, Paper 4, Q8(b)(ii) (1 mark): The variation with 1 m of Emax for the metal surface is shown in Fig. 8.1. 4 Emax/ 10–19 J 3 2 1 0 1.5 2.0 2.5 3.0 3.5 4.0 1 / 106 m–1 λ Fig. 8.1 19 Use Fig. 8.
  4. Specimen, Paper 4, Q8(b)(iii) (3 marks): Use the gradient of Fig. 8.1 to determine a value for the Planck constant h. Show your working. h = J s [3]
  5. Specimen, Paper 4, Q8(c) (2 marks): The metal surface in (b) becomes oxidised. Photoelectric emission is still observed but the work function energy is increased. On Fig. 8.1, draw a line to show

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