Atomic Structure Question 173

Question: The de-Broglie wavelength associated with a particle of mass $ {10^{-6}}kg $ moving with a velocity of $ 10m{s^{-1}} $ , is

[AIIMS 2001]

Options:

A) $ 6.63\times {10^{-22}}m $

B) $ 6.63\times {10^{-29}},m $

C) $ 6.63\times {10^{-31}},m $

D) $ 6.63\times {10^{-34}},m $

Show Answer

Answer:

Correct Answer: B

Solution:

Mass of the particle $ (m)={10^{-6}} $ kg and velocity of the particle $ (v)=10,m{s^{-1}} $

$ \lambda =\frac{h}{mv}=\frac{6.63\times {10^{-34}}}{{10^{-6}}\times 10}=6.63\times {10^{-29}}m $



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