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General Knowledge · Q1231

Practice

Competitive Exams · General Knowledge · question 1231

Q1231

The energy of a photon, whose momentum is 10 MeV/c, where c is the speed of light, is given by

A.
10 MeV
Answer
B.
100 MeV
C.
1 MeV
D.
0.1 MeV

Answer: Option A

Solution

Answer: Option A
Solution:
A photon’s relativistic momentum is given by the equation,E = pc where p is the momentum.
P = 10 MeV/c
So, E = 10 MeV