DP Physics (first assessment 2025)

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Question 23M.1A.SL.TZ2.30

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ2.30
Level SL Paper 1A Time zone TZ2
Command term Question number 30 Adapted from N/A
30.
[Maximum mark: 1]
23M.1A.SL.TZ2.30

A planet has an albedo of 0.30. A simplified energy balance for the planet is shown.

What is the intensity radiated by the surface of the planet?


A.  70 W m−2

B.  90 W m−2

C.  100 W m−2

D.  130 W m−2

[1]

Markscheme

D

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