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Date May 2018 Marks available 1 Reference code 18M.1.HL.TZ1.38
Level Higher level Paper Paper 1 Time zone 1
Command term Question number 38 Adapted from N/A

Question

According to the Bohr model for hydrogen, visible light is emitted when electrons make transitions from excited states down to the state with n = 2. The dotted line in the following diagram represents the transition from n = 3 to n = 2 in the spectrum of hydrogen.

                                                             M18/4/PHYSI/HPM/ENG/TZ1/38_01

Which of the following diagrams could represent the visible light emission spectrum of hydrogen?

M18/4/PHYSI/HPM/ENG/TZ1/38_02

Markscheme

B

Examiners report

[N/A]

Syllabus sections

Additional higher level (AHL) » Topic 12: Quantum and nuclear physics » 12.1 – The interaction of matter with radiation
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Additional higher level (AHL) » Topic 12: Quantum and nuclear physics
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