DP Physics (last assessment 2024)

Question 18M.1.SL.TZ2.30

Date	May 2018	Marks available	[Maximum mark: 1]	Reference code	18M.1.SL.TZ2.30
Level	SL	Paper	1	Time zone	TZ2
Command term		Question number	30	Adapted from	N/A

30.

[Maximum mark: 1]

18M.1.SL.TZ2.30

Mars and Earth act as black bodies. The $\frac{{{\text{power radiated by Mars}}}}{{{\text{power radiated by the Earth}}}} = p$ and $\frac{{{\text{absolute mean temperature of the surface of Mars}}}}{{{\text{absolute mean temperature of the surface of the Earth}}}} = t$ .

What is the value of $\frac{{{\text{radius of Mars}}}}{{{\text{radius of the Earth}}}}$ ?

A. $\frac{p}{{{t^4}}}$

B. $\frac{{\sqrt p }}{{{t^2}}}$

C. $\frac{{{t^4}}}{p}$

D. $\frac{{{t^2}}}{{\sqrt p }}$

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Core » Topic 8: Energy production » 8.2 – Thermal energy transfer

Core » Topic 8: Energy production

Question 18M.1.SL.TZ2.30

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