Question

The de Broglie wavelength of a golf ball weighing 0.2 kg and moving with a speed $1.4\times {10}^{-3}$ $m{s}^{-1}$ Is about:

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

$\lambda =\frac{h}{mv}=\frac{(6.6\times {10}^{-34})}{0.2\times 1.4\times {10}^{-3}}=2.35\times {10}^{-30}m$