4 marksParticulate Nature of Electromagnetic Radiation

CAPE Physics Unit 2 · 2001 · Paper 2 · Question 8(a)(i)

Photon models and the photoelectric effect.

Discuss the physical process described by E_2 - E_1 = hf and state what EACH term represents.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

8(a)(ii)Explain what is meant by 'work function'. State the energy transformation that takes place when light is incident on a surface causing electron emission, and…[4 marks]
8(b)(i)Determine the energy of each photon emitted.[3 marks]
8(b)(ii)Determine the number of photons emitted per second.[4 marks]
8(c)If the light is incident on a surface with work function 2.05 eV, state whether electrons will be emitted, and if so, calculate their maximum kinetic energy.…[5 marks]

More practice: the rest of this paper · more Particulate Nature of Electromagnetic Radiation questions · all CAPE Physics Unit 2 past papers