Q121 / 160 · TS EAMCET 2020 (14 Sep Shift 1) · Physics

Choose the correct statement.

  • A
    Photons carry some momentum because, they have a finite rest mass.
  • B
    Electromagnetic force is weaker than weak nuclear force but stronger than gravitational force.
  • C
    Weak nuclear force is responsible for the stability of nuclei.
  • Correct answer
    D
    Electromagnetic force acts over large distances and does not need any intervening medium.

Solution

Amongst the given options, the statement given in option (d) is correct, but rest are incorrect. These can be corrected as follows Option (a) Photons carry some momentum, because electro magnetic radiation carries momentum. Option (b) Electromagnetic force is stronger than both weak nuclear force and gravitational force. Option (c) Weak nuclear force is not responsible for the stability of nuclei, it is the strong nuclear force, which is responsible for the stability of nuclei.

Hence, the correct answer is option: 'D'.

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