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6.2.2a Galaxies and astronomical distances

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Question 4

Star A has a higher surface temperature than star B, but they both emit electromagnetic radiation with the same total power.

Which statement is correct?

A

The diameter of star A is less than the diameter of star B.

B

The diameter of star A is greater than the diameter of star B.

C

The diameter of star A is equal to the diameter of star B.

D

The surface area of star A is greater than the surface area of star B.

Markscheme

6.2.2a Galaxies and astronomical distances Questions

  1. IGCSE
  2. /Physics
  3. /6.2.2a Galaxies and astronomical distances

25 exam-style questions on CIE IGCSE Physics 6.2.2a Galaxies and astronomical distances. Each one has a worked solution and a mark scheme showing where the marks go.

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