Question

The wavelength associated with a golf ball weighing $200g$ and moving at a speed of $5m/h$ is of the order?

Answer 1

Step 1: Given data

Mass of golf ball, $m=200g=0.2kg$

Speed of golf ball, $v=5m/h=\frac{5}{3600}m/s=0.001389m/s$

Step 2: Calculation of wavelength

Wavelength can be calculated as $\lambda =\frac{h}{mv}$, where $h=6.626\times {10}^{-34}Js$ is the Planck's constant.

$\lambda =\frac{6.626\times {10}^{-34}}{0.2\times 0.001389}=2.4\times {10}^{-30}m$

Hence, the order of wavelength is ${10}^{-30}$.