NextMockपरीक्षा शोधा, उदा. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2023

BPSC – Combined Competitive Examination · प्रश्न 9

In the universe, what are pulsars?

  1. A group of stars
  2. Rotating neutron stars
  3. Explosion of a star
  4. Radio waves emitted by a star
उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (B) Rotating neutron stars

स्पष्टीकरण

Pulsars are neutron stars whose beams sweep past Earth like a lighthouse, producing regular pulses.

  • (A) चूक

    Wrong: that is a cluster.

  • (B) बरोबर

    Correct: pulsars are rapidly spinning, highly magnetised neutron stars emitting beams.

  • (C) चूक

    Wrong: that is a supernova.

  • (D) चूक

    Wrong: pulsars emit such waves, but they are the stars themselves.