ESS
Grade-9
Easy
Question
A swiftly rotating neutron star is known as a ____________.
- Supernova
- White dwarf
- Nova
- Pulsar
Hint:
A swiftly rotating neutron star is known as a pulsar.
The correct answer is: Pulsar
- When massive stars collide with each other, a neutron star is formed
- All stars rotate swiftly, so in accordance with the law of conservation of angular momentum, neutron stars must rotate fast.
- Hence they rotate swiftly and are called pulsars.
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