DP Physics (last assessment 2024)

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Question 18M.1.HL.TZ1.24

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.1.HL.TZ1.24
Level HL Paper 1 Time zone TZ1
Command term Question number 24 Adapted from N/A
24.
[Maximum mark: 1]
18M.1.HL.TZ1.24

The dashed line on the graph shows the variation with wavelength of the intensity of solar radiation before passing through the Earth’s atmosphere.

The solid line on the graph shows the variation with wavelength of the intensity of solar radiation after it has passed through the Earth’s atmosphere.

                                        M18/4/PHYSI/HPM/ENG/TZ1/24

Which feature of the graph helps explain the greenhouse effect?

A.     Infrared radiation is absorbed at specific wavelengths.

B.     There is little absorption at infrared wavelengths.

C.     There is substantial absorption at visible wavelengths.

D.     There is little absorption at UV wavelengths.

[1]

Markscheme

A

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