Question
Differentiate between nuclear fission and nuclear fusion.
Nuclear Fission | Nuclear Fusion | |
Natural occurrence of the Process: | Fission reaction does not normally occur in nature. | Fusion occurs in stars, such as the sun. |
By products of the reaction: | Fission produces many highly radioactive particles. | Few radioactive particles are produced by fussion reaction, but if a fission "trigger" is used, radioactive particle will result from that. |
Energy ratios: | The energy released by fission is a million times greater than that realeased in chemical reaction; but lower than the energy released by nuclear fusion. | The energy released by fusion is three to four times greater than the energy released by fission. |
Nuclear weapon: | One class of nuclear weapon is a fission bomb, also known as an atomic bomb or atom bomb. | One class of nuclear weapon is the hydrogen bomb, which uses a fission reaction to "trigger" a fusion reaction. |
Energy requirement: | Takes little energy to split two atoms in a fission reaction. | Extremely high energy is required to bring two or more protons close enough that nuclear forces overcome their electrostatics repulsio. |
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| S.NO. | Object distance (u) cm | Image distance (v) cm |
| 1 | -150 | +30 |
| 2 | -75 | +37.5 |
| 3 | -50 | +50 |
| 4 | -37.5 | +75 |
| 5 | -30 | +150 |
| 6 | -15 | +37.5 |