dual-nature-of-radiation-and-matter Question 32

Question: Q. 1. A particle is dropped from a height 1. The deBroglie wavelength of the particle as a function of height is proportional to (a) H. (c) H0.

[NCERT Exemplar]

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Solution:

Ans. Correct option : (d)

Explanation: Velocity v, of freely falling body after falling from a height H, will be :

H=v=2gH

We know that de-Broglie wavelength λ=hp

λ=hmv=hm2gH

h,m, and g are constant

hm2g is constant λ1HλH1/2



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