DP Physics (first assessment 2025)

Question EXE.1A.SL.TZ0.25

Date	Example questions Example questions	Marks available	[Maximum mark: 1]	Reference code	EXE.1A.SL.TZ0.25
Level	SL	Paper	1A	Time zone	TZ0
Command term		Question number	25	Adapted from	N/A

25.

[Maximum mark: 1]

EXE.1A.SL.TZ0.25

Star X has the same surface temperature as the Sun and a luminosity of $10^{4} L_{⊙}$

What is $\frac{radius of X}{radius of the Sun}$ ?

A. 10

B. 10²

C. 10³

D. 10⁴

[1]

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