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Astrophysics and cosmology

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Question 3

The parallax angle for a star is 0.008 seconds of arc0.008\text{ seconds of arc}0.008 seconds of arc. What is the distance in parsecs (pc\text{pc}pc) of the star from the Earth?

A

125 pc125\text{ pc}125 pc

B

250 pc250\text{ pc}250 pc

C

80 pc80\text{ pc}80 pc

D

3.9×1017 pc3.9 \times 10^{17}\text{ pc}3.9×1017 pc

Markscheme

Astrophysics and cosmology Questions

  1. A Level
  2. /Physics
  3. /Astrophysics and cosmology

66 exam-style questions on OCR A A Level Physics Astrophysics and cosmology, covering Stars, Electromagnetic radiation from stars, and Cosmology. Each one has a worked solution and a mark scheme showing where the marks go.

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