Question

A cricket ball of 0.5 kg is moving with a velocity of 100 ms${}^{-1}$. The wavelength associated with its motion is:

• A. 1/100 cm
• B. 66 $\times$ 10${}^{-34}$ m
• C. 1.32 $\times$ 10${}^{-35}$ m
• D. 6.6 $\times$ 10${}^{-28}$ m

Answer 1

The correct option is C 1.32 $\times$ 10${}^{-35}$ m

As we know,

$\lambda$ = $\frac{h}{mv}$

$=\frac{6.62\times {10}^{-34}}{0.5\times 100}$

$=1.32\times {10}^{-35}$ m

Hence, the correct option is $C$