Question

A $0.66kg$ ball is moving with a speed of $100m/s$. The associated wavelength will be:

$(h=6.6\times {10}^{-34}Js)$.

• A. $6.6\times {10}^{-32}m$
• B. $6.6\times {10}^{-34}m$
• C. $1\times {10}^{-35}m$
• D. $1\times {10}^{-32}$

Answer 1

The correct option is C $1\times {10}^{-35}m$

As we know, $\lambda =h/mv$

Here, $h$ = Plank's constant

By putting all the given values, we get-

$=\frac{6.6\times {10}^{-34}}{0.66\times 100}$

$=1\times {10}^{-35}m$

So, the correct option is $C$