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Date November 2016 Marks available 1 Reference code 16N.1.SL.TZ0.24
Level Standard level Paper Paper 1 Time zone Time zone 0
Command term Question number 24 Adapted from N/A

Question

Photons of energy 2.3eV are incident on a low-pressure vapour. The energy levels of the atoms in the vapour are shown

What energy transition will occur when a photon is absorbed by the vapour? 

A. –3.9eV to –1.6eV

B. –1.6eV to 0eV 

C. –1.6eV to –3.9eV 

D. 0eV to –1.6eV

Markscheme

A

Examiners report

[N/A]

Syllabus sections

Core » Topic 7: Atomic, nuclear and particle physics » 7.1 – Discrete energy and radioactivity
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