Q. Consider the following statements regarding Gamma Rays
1. They are the highest-energy light in the universe.
2. On Earth, gamma rays are generated by nuclear explosions, lightning and radioactive decay.
3. Gamma rays are not harmful to life on Earth.
Which of the above statements is/are correct?
Answer: B
Notes:
Recently, a group of astronomers have detected a very short, powerful burst of high-energy radiation also known as Gamma-Ray Bursts (GRBs) that lasted for about a second. It was detected by National Aeronautics and Space Administration’s (NASA’s) Fermi Gamma-ray Space Telescope.
About Gamma Rays
- They are the highest-energy light in the universe. They can have over a billion times the energy of the type of light visible to our eyes.
- They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.
- On Earth, gamma rays are generated by nuclear explosions, lightning, and the less dramatic activity of radioactive decay.
- Gamma rays are so energetic that they are harmful to life on Earth.
Source: PIB
