Question

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

• A. 6.63 X 10^-22 m
• B. 6.63 X 10^-29 m
• C. 6.63 X 10^-31 m
• D. 6.63 X 10^-34 m

Answer 1

The correct option is B

6.63 X 10^-29 m

Mass of the particle $\left(m\right)={10}^{-6}kg$ and velocityof the particle $\left(v\right)=10m{s}^{-1}$

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