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Question 23M.1.HL.TZ2.14

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1.HL.TZ2.14
Level HL Paper 1 Time zone TZ2
Command term Question number 14 Adapted from N/A
14.
[Maximum mark: 1]
23M.1.HL.TZ2.14

An electromagnetic wave enters a medium of lower refractive index.

Three statements are made:

I.   The wavelength of the wave has increased.
II.   The frequency of the wave has decreased.
III.  The speed of the wave has increased.

What is true about the properties of the wave?


A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

[1]

Markscheme

B

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