AIPMT PRELIMS2006Physics-Modern Physics
AIPMT PRELIMS 2006 Physics Photon Momentum MCQ Question
Type: MCQ-numerical-Medium-Class 12
The momentum of a photon of energy 1 MeV in kg m/s, will be:
A
0.33 x 10⁶
B
8 x 10⁻²⁴
C
5 x 10⁻²³
D
5 x 10⁻²²
Correct Answer
Option D
Detailed Explanation
The momentum of a photon is given by p = E/c, where E is the energy and c is the speed of light. Substituting the given values, the momentum is 8 x 10⁻²⁴ kg m/s.
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