A $0.66 \mathrm{~kg}$ ball is moving with a speed of $100 \mathrm{~m} / \mathrm{s}$. The associated…
A $0.66 \mathrm{~kg}$ ball is moving with a speed of $100 \mathrm{~m} / \mathrm{s}$. The associated wavelength will be (h $\left.=6.6 \times 10^{-34} \mathrm{Js}\right)$
$6.6 \times 10^{-32} \mathrm{~m}$
$6.6 \times 10^{-34} \mathrm{~m}$
$1.0 \times 10^{-35} \mathrm{~m}$
$1.0 \times 10^{-32} \mathrm{~m}$
Solution
From de-Broglie equation,
$\lambda=\frac{\mathrm{h}}{\mathrm{mv}}=\frac{6.6 \times 10^{-34}}{0.66 \times 100}=10^{-35} \mathrm{~m}$