DP Physics (first assessment 2025)

Question EXE.1A.SL.TZ0.13

Date	Example questions Example questions	Marks available	[Maximum mark: 1]	Reference code	EXE.1A.SL.TZ0.13
Level	SL	Paper	1A	Time zone	TZ0
Command term		Question number	13	Adapted from	N/A

13.

[Maximum mark: 1]

EXE.1A.SL.TZ0.13

Planets X and Y move in circular orbits around the same star.

The orbital period of planet Y is twice the orbital period of planet X. The orbital radius of planet X is $R$ .

What is the orbital radius of planet Y?

A. $\sqrt[3]{2} R$

B. $\sqrt[3]{4} R$

C. $2 R$

D. $4 R$

[1]

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