Question

A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavelength will be $(h=6.6\times {10}^{-34}Js)$

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

Given that, Mass of the ball, m=0.66kg ,

Velocity of the ball, v=100m.s−1

h=planck's constant=6.6×${10}^{-34}$ Js $(1J=\frac{Kg{m}^2}{S^2})$
$\lambda =\frac{h}{mv}=\frac{6.6\times {10}^{-34}}{0.66\times 100}=1.0\times {10}^{-35}m$