NextMockपरीक्षा शोधा, उदा. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2019

UPPCS · प्रश्न 138

Black-hole is

  1. a flight recorder in aeroplane
  2. a spot on the sun
  3. a place in Antarctica
  4. a collapsed star
उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (D) a collapsed star

स्पष्टीकरण

A black hole forms when a massive star collapses under its own gravity into a region so dense that not even light can escape.