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Question

Chemistry Question on Structure of atom

The wavelength associated with a golf ball weighing 200 g and moving at a speed of 5 m/h is of the order

A

10−10 m10^{-10} \, m

B

10−20 m10^{-20} \, m

C

10−30 m10^{-30} \, m

D

10−40 m10^{-40} \, m

Answer

10−30 m10^{-30} \, m

Explanation

Solution

Using the de-Broglie- relationship :
         λ=hmv=6.625×10−340.2×560×60=2.3×10−30 m\, \, \, \, \, \, \, \, \, \lambda=\frac{h}{mv}=\frac{6.625 \times 10^{-34}}{0.2 \times \frac{5}{60 \times 60}}=2.3 \times 10^{-30} \, m