The de Broglie wavelength of a ball of mass 10 g moving with a velocity of $10 \mathrm{~m} \mathrm{~

Question

The de Broglie wavelength of a ball of mass 10 g moving with a velocity of $10 \mathrm{~m} \mathrm{~s}^{-1}$ is\ $\left[h=6.626 	imes 10^{-34} \mathrm{~J} \mathrm{~s}ight]$\

Professor PC Thomas Classes · Answer

(a) : $\lambda=\frac{h}{m v}$\ $h=6.626 	imes 10^{-34} \mathrm{~J} \mathrm{~s}, m=\frac{10}{1000}=0.01 \mathrm{~kg}, v=10 \mathrm{~m} \mathrm{~s}^{-1}$\ Putting the values,
 $ \lambda=\frac{h}{m v}=\frac{6.626 	imes 10^{-34}}{0.01 	imes 10}=6.626 	imes 10^{-33} \mathrm{~m} $