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Question 17N.1.HL.TZ0.28

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.1.HL.TZ0.28
Level HL Paper 1 Time zone TZ0
Command term Question number 28 Adapted from N/A
28.
[Maximum mark: 1]
17N.1.HL.TZ0.28

Monochromatic light is incident on two identical slits to produce an interference pattern on a screen. One slit is then covered so that no light emerges from it. What is the change to the pattern observed on the screen?

A. Fewer maxima will be observed.

B. The intensity of the central maximum will increase.

C. The outer maxima will become narrower.

D. The width of the central maximum will decrease.

[1]

Markscheme

A

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