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Classification of stars (A-level only)

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Question 4

A star has a surface temperature of approximately 4.0 × 103 K and a radius of 2.8 × 1010 m.

Which of the following correctly identifies the type of star and its spectral class?

A

Type of star: main sequence; Spectral class: K

B

Type of star: red giant; Spectral class: K

C

Type of star: white dwarf; Spectral class: K

D

Type of star: red giant; Spectral class: G

Markscheme

Classification of stars (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Classification of stars (A-level only)

18 exam-style questions on AQA A Level Physics Classification of stars (A-level only), covering Classification by luminosity (A-level only), Absolute magnitude, *M* (A-level only), Classification by temperature, black-body radiation (A-level only), Principles of the use of stellar spectral classes (A-level only), The Hertzsprung–Russell (HR) diagram (A-level only), and Supernovae, neutron stars and black holes (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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