Dual Nature of Radiation and Matter - Result Question 68

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72. Momentum of a photon of wavelength $\lambda$ is

======= ####72. Momentum of a photon of wavelength $\lambda$ is

3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/dual-nature-of-radiation-and-matter/dual-nature-of-radiation-and-matter—result-question-68.md (a) $\frac{h}{\lambda}$

(b) zero

(c) $\frac{h \lambda}{c^{2}}$

(d) $\frac{h \lambda}{c}$

[1993]

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Answer:

Correct Answer: 72. (a)

Solution:

  1. (a) According to de Brogie wave equation,

$ \lambda=\frac{h}{m v}=\frac{h}{p} \quad \therefore p=\frac{h}{\lambda} $