Q 12-11-031NEETJEE MainMedium
The de Broglie wavelength of a $1$ kg ball moving at $1$ m/s is of the order of ($h = 6.6 \times 10^{-34}$ J s)
Answer: (C) $10^{-33}$ m
$\lambda = \dfrac{h}{mv} = 6.6 \times 10^{-34}$ m. This is far too small to detect, which is why wave effects are not seen for everyday objects.
Solution by Sreeraj P, M.Sc Physics