Question 1 of 1
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Question 1
1(a)
Explain what is meant by the threshold frequency of a metal, using the photon model.
[2 marks]
Select a question diagram to draw on:
Spec: 3.2.2.1(a)
Reasoning
1(b)
Light of frequency $8.0 × 10^{14}$ Hz shines on the metal. Calculate the energy of one photon. Use $h = 6.63 × 10^{-34}$ J s.
[2 marks]
Select a question diagram to draw on:
Spec: 3.2.2.1(c)
Reasoning
1(c)
The work function of the metal is $3.00 × 10^{-19}$ J. Calculate the maximum kinetic energy of an emitted electron. Use your answer to part (b), or $5.30 × 10^{-19}$ J if needed.
[3 marks]
Select a question diagram to draw on:
Spec: 3.2.2.1(c)
Reasoning