First slide

Matter waves (DC Broglie waves)

Question

A particle is dropped from a height H. The de - Broglie wavelength associated with particle is proportional to

Easy

A

H
B

H^1/2
C

H⁰
D

H^–1/2

Solution

$λ = \frac{h}{m v} v = \sqrt{2 g H} λ = \frac{h}{m \sqrt{2 g H}} \Rightarrow λ \propto H^{- \frac{1}{2}}$

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