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Question 18M.2.SL.TZ1.3b.i

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.SL.TZ1.3b.i
Level SL Paper 2 Time zone TZ1
Command term Calculate Question number b.i Adapted from N/A
b.i.
[Maximum mark: 1]
18M.2.SL.TZ1.3b.i

A beam of coherent monochromatic light from a distant galaxy is used in an optics experiment on Earth.

The air between the slits and the screen is replaced with water. The refractive index of water is 1.33.

(b.i)

Calculate the wavelength of the light in water.

[1]

Markscheme

633.0 1.33 = 476 «nm»

[1 mark]

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