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7.3 Stars

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Question 22
F

The table shows the approximate transmission of two types of radiation through the atmosphere.

RadiationPercentage reaching the ground
Radio waves at the selected wavelength90%
X-rays at the selected wavelength0%

Astronomers want to observe both types of radiation from the same object. Which arrangement is suitable?

[1]
A

Both detectors on the ground; use longer exposures for X-rays.

B

X-ray detector on the ground; radio detector outside the atmosphere.

C

Radio detector on the ground; X-ray detector outside the atmosphere.

D

Both detectors on the ground; use a larger dish for X-rays.

Markscheme

7.3 Stars Questions

  1. GCSE
  2. /Physics
  3. /7.3 Stars

75 exam-style questions on Edexcel GCSE Physics 7.3 Stars, covering 7.3.1 Evolution of stars similar to the Sun, 7.3.2 Evolution of massive stars, and 7.3.3 Observing the Universe. Each one has a worked solution and a mark scheme showing where the marks go.

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