Physics - Modern Physics Question with Solution | TestHub

Given: mass of bullet,$m=\text{0.040} \mathrm{kg}$and speed of bullet,$v=1000 \mathrm{m} {\mathrm{s}}^{-1}$

de - Broglie wavelength,

$\lambda =\frac{h}{mv}=\frac{6\text{.}63\times {10}^{-34}}{0\text{.}040\times 1\times {10}^3}$$\left(\begin{array}{cc}\because & m=0\text{.}040\text{ kg}\\ & v=1{\text{ km s }}^{\text{-1}}\\ & =1000 {\text{m s}}^{\text{-1}}\end{array}\right)$

$=\text{1.66}\times {10}^{-35} \mathrm{m}$.