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Question 19N.1A.SL.TZ0.14

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.1A.SL.TZ0.14
Level SL Paper 1A Time zone TZ0
Command term Question number 14 Adapted from N/A
14.
[Maximum mark: 1]
19N.1A.SL.TZ0.14

Monochromatic light is used to produce double-slit interference fringes on a screen. The fringe separation on the screen is y. The distance from the slits to the screen and the separation of the slits are both doubled, and the light source is unchanged. What is the new fringe separation on the screen?

A. y4

B. y

C. 2y

D. 4y

[1]

Markscheme

B

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