Q. With reference to Gamma-ray bursts (GRB) consider the following statements:
1.These are the strongest and brightest explosions in the universe.
2.The energy produce by GRB is weaker than the energy produced by Sun.
3.Short-duration gamma-ray bursts (SGRBs) last for less than two seconds and are thought to be caused by the collision of two compact objects such as a neutron star and a black hole.
Which of the statements given above is/are correct?
Answer: C
Notes:
Explanation –
Statement 1 and 3 are correct. GRBs are the strongest and brightest explosions in the universe. SGRBs last for less than two seconds and are thought to be caused by the collision of two compact objects, such as a neutron star and a black hole.
Statement 2 is incorrect. gamma-ray bursts produce as much energy as the sun will emit during its entire 10-billion-year existence.
Source: ForumIAS
