Question

What is the source of Sun Energy?
1. Nuclear fusion
2. Nuclear Fission
3. Chemical reaction
4. All above

Answer 1

Correct Answer - Option 2 : Nuclear Fission

The correct answer is Nuclear Fusion.

• Nuclear fusion is a reaction in which two or more atomic nuclei come closer enough to form one or more different atomic nuclei and subatomic particles (neutrons or protons).
  • ​1H2 + 1H2→ 2He4
• A hydrogen bomb is an immensely powerful bomb whose destructive power comes from the rapid release of energy during the nuclear fusion of isotopes of hydrogen (deuterium and tritium), using an atom bomb as a trigger.
• Sun is the best example of nuclear fusion in which smaller nuclei of atoms fused at very high temperatures and pressure into a larger nucleus.
• This fusion happens inside the core of the sun and the energy later escapes to the surface of the sun.
• It is responsible for the generation of solar radiation.

 

• Nuclear Fission:
  • The nucleus of a heavy atom (such as uranium, plutonium, or thorium), when bombarded with low-energy neutrons, can be split apart into lighter nuclei.
  • This process is called nuclear fission.
  • Fission occurs when a neutron slams into a larger atom, forcing it to excite and split into two smaller atoms also known as fission products.