Question

The de-Broglie wavelength of a particle with mass 1 gmand velocity 100m/sec is

• A. 6.63 X 10^-33 m
• B. 6.63 X 10^-34 m
• C. 6.63 X 10^-35 m
• D. 6.65 X 10^-35 m

Answer 1

The correct option is A

6.63 X 10^-33 m

$\lambda =\frac{h}{mv}=\frac{6.63\times {10}^{-34}}{{10}^{-3}\times 100}=6.63\times {10}^{-33}$m