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Question 18M.2.HL.TZ2.5a

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.HL.TZ2.5a
Level HL Paper 2 Time zone TZ2
Command term Sketch Question number a Adapted from N/A
a.
[Maximum mark: 1]
18M.2.HL.TZ2.5a
(a)

Monochromatic light from two identical lamps arrives on a screen.

                                                    M18/4/PHYSI/HP2/ENG/TZ2/05.a_01

The intensity of light on the screen from each lamp separately is I0.

On the axes, sketch a graph to show the variation with distance x on the screen of the intensity I of light on the screen.

[1]

Markscheme

horizontal straight line through I = 2

 

M18/4/PHYSI/HP2/ENG/TZ2/05.a

Accept a curve that falls from I = 2 as distance increases from centre but not if it falls to zero.

[1 mark]