A heavenly body that emits radio signals at regular intervals of time is known as :

Options :
  1. Red Giant
  2. White Dwarf
  3. Pulsar
  4. Quasar
Answer and Explanation :-

Answer: Option 3

Explanation:

It is the source which has power to emits radio signals at frequent intervals of time. The discovery of Pulsar was a team work. It was completed in 1967 at Cambridge University of England.

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