Skip to content

Course home

Sign up

Astrophysics and cosmology

EasyMediumHard
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556
Question 23

An astronomer identifies several non-fusing dense stellar cores in a nearby star cluster.

Given that the mass of the Sun is M⊙=2.0×1030 kgM_{\odot} = 2.0 \times 10^{30} \text{ kg}M⊙​=2.0×1030 kg, which of the following observed core masses cannot belong to a stable white dwarf?

A

2.3×1030 kg2.3 \times 10^{30} \text{ kg}2.3×1030 kg

B

2.7×1030 kg2.7 \times 10^{30} \text{ kg}2.7×1030 kg

C

2.9×1030 kg2.9 \times 10^{30} \text{ kg}2.9×1030 kg

D

2.5×1030 kg2.5 \times 10^{30} \text{ kg}2.5×1030 kg

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.

Question bank