Dual Nature Of Radiation And Matter Ques 78
78. The energy of a photon of wavelength $\lambda$ is
[1988]
(a) $h c \lambda$
(b) $\frac{h c}{\lambda}$
(c) $\frac{\lambda}{h c}$
(d) $\frac{\lambda h}{c}$
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Answer:
Correct Answer: 78.(b)
Solution:
- (b) Energy of a photon $E=h v=\frac{h c}{\lambda}$