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Question 18M.1.SL.TZ1.27

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.1.SL.TZ1.27
Level SL Paper 1 Time zone TZ1
Command term Question number 27 Adapted from N/A
27.
[Maximum mark: 1]
18M.1.SL.TZ1.27

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

[1]

Markscheme

C

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