If a particle of mass 5.0 mg moves with the speed of 8.0 m/sec, then the de-Broglie’s wavelength will be: A) 1.68 x 10 -27 m C) 1.65 x 10- 29 m B) 1.70 x 10- 25 m D) 1.66 x 10- 29 m
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Answer:
Mass of particle, m=1 gram=10
−3
Kg
Velocity, v=100ms
−1
De broglie wavelength λ=
mv
h
=
1×10
−3
×100
6.626×10
−34
=6.626×10
−33
m
Hence, option C is correct.
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