DP Physics (first assessment 2025)

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Question 23M.2.SL.TZ2.17b

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.2.SL.TZ2.17b
Level SL Paper 2 Time zone TZ2
Command term Explain Question number b Adapted from N/A
b.
[Maximum mark: 2]
23M.2.SL.TZ2.17b
(b)

Explain why star B has a greater surface area than star A.

[2]

Markscheme

stars have same/similar L AND star B has lower T ✓

correct reference to luminosity formula (Lα AT4) ✓

 

MP1 Allow reverse argument i.e., star A has higher T

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