The deBroglie wavelength associated with a steel ball of mass $1000 \mathrm{gm}$ moving at a speed of $1…

The deBroglie wavelength associated with a steel ball of mass $1000 \mathrm{gm}$ moving at a speed of $1 \mathrm{~ms}^{-1}$ is $\left[\mathrm{h}=6.626 \times 10^{-34} \mathrm{Js}\right]$
  1. $6.626 \times 10^{-31} \mathrm{~m}$
  2. $6.626 \times 10^{-37} \mathrm{~m}$
  3. $6.626 \times 10^{-34} \mathrm{~m}$
  4. $6.626 \times 10^{34} \mathrm{~m}$

Solution

de Broglie wavelength is given by $\lambda=\frac{\mathrm{h}}{\mathrm{mv}}=\frac{6.626 \times 10^{-34}}{1000 \times 10^{-3} \times 1}=6.626 \times 10^{-34} \mathrm{~m}$

Asked in: MHT CET Full Test 13

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