The wavelength associated with a golf ball weighing 200g and moving at a speed of 5m/h is of the order
A
10−10m
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B
10−20m
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C
10−30m
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D
10−40m
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Solution
The correct option is C10−30m We can use de Broglie's work to solve this: λ=h/p;p=mv Convert m, v to SI units, use h=6.6∗10−34 And you get the order to be approximately be 10−30