Tag: stars

Questions Related to stars

______________are the result of exploding stars that initially are more than about eight times the sun's mass.

  1.  stars

  2. black hole

  3. supernova

  4. none of these


Correct Option: C

Which of the following is the stage where a massive star explodes and releases a lot of energy?

  1. Red supergiant

  2. Blackhole

  3. Main sequence

  4. Supernova


Correct Option: B
Explanation:

Stars with very large masses can become black holes. A black hole releases a huge amount of gravitational energy, as material swirls toward its event horizon. This energy produces a jet of particles that streams over a distance of 300,000 light-years.

The constellation of stars appear at different positions in the sky at different times during night mainly ________________________.

  1. Because earth rotates about its axis

  2. Because Earth revolves round the sun

  3. Because of optical illusion

  4. Because celestial bodies are changing their positions all the time


Correct Option: A