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Date May 2018 Marks available 1 Reference code 18M.1.SL.TZ1.27
Level Standard level Paper Paper 1 Time zone 1
Command term Question number 27 Adapted from N/A

Question

The energy-level diagram for an atom that has four energy states is shown.

                                            M18/4/PHYSI/SPM/ENG/TZ1/27

What is the number of different wavelengths in the emission spectrum of this atom?

A.     1

B.     3

C.     6

D.     7

Markscheme

C

Examiners report

[N/A]

Syllabus sections

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