Multiple choice

If a ______star spins, it emits radio waves. It is called a Pulsar.

  1. Red Giant

  2. Supernova

  3. Neutron

  4. White Dwarf

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When a neutron star spins rapidly, it emits beams of electromagnetic radiation from its magnetic poles. As these beams sweep across Earth like a lighthouse, we detect regular pulses of radio waves, earning it the name 'pulsar' (pulsating star).