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Question

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


A
1010m
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B
1020m
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C
1030m
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D
1040m
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Solution

The correct option is B $${ 10 }^{ -30 }m$$
$$momentum=\dfrac{200}{1000}\times\dfrac{5m/s}{3600}$$
$$\lambda =\dfrac{6.6\times 10^{-34}J-s}{\dfrac{1}{5}\times\dfrac{5}{3600}m/s}$$
     $$=2.3760\times10^{-30}m$$

Chemistry

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