DP Physics (first assessment 2025)

Question 21M.1A.SL.TZ1.29

Date	May 2021	Marks available	[Maximum mark: 1]	Reference code	21M.1A.SL.TZ1.29
Level	SL	Paper	1A	Time zone	TZ1
Command term		Question number	29	Adapted from	N/A

29.

[Maximum mark: 1]

21M.1A.SL.TZ1.29

A black body at temperature T emits radiation with peak wavelength $λ_{ρ}$ and power P. What is the temperature of the black body and the power emitted for a peak wavelength of $\frac{λ_{ρ}}{2}$ ?

[1]

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Syllabus sections

B. The particulate nature of matter » B.2 Greenhouse effect

Question 21M.1A.SL.TZ1.29

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