Question
Question: The momentum of a photon having energy equal to the rest energy of an electron is:...
The momentum of a photon having energy equal to the rest energy of an electron is:
A
Zero
B
2.73 × 10–22 kg ms–1
C
1.99 × 10–24 kg ms–1
D
Infinite
Answer
2.73 × 10–22 kg ms–1
Explanation
Solution
p = λh = cE = cmec2 = mec