A particle of mass 10-21 grams is moving with a velocity which is 1300th of that of light. Wavelength of the particle is equal to

A particle of mass 10-21 grams is moving with a velocity which is 1300th of that of light. Wavelength of the particle is equal to

  1. A

    6.625×10-16 m

  2. B

    6.625×10-14 m

  3. C

    6.625×10-18 m

  4. D

    6.625×10-20 m

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    Solution:

    Debroglie equation;

    λ=hmv; h=6.625×10-34 J.s; Given m=10-21 g=10-24 Kg; v=1300×3×108 m/s; Substituting the values, λ=6.625×10-34 J.s10-24 Kg×106 m/s; λ=6.625×10-16 m ;

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