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The de Broglie wavelength associated with a ball of mass `1kg` having kinetic enegry `0.5J` is

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The de Broglie wavelength associated with a ball of mass `1kg` having kinetic enegry `0.5J` is
A. `6.626xx10^(-34)` m
B. `13.20xx10^(-34)` m
C. `10.38xx10^(-21)` m
D. `6.626xx10^(-34)` Å
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Correct Answer - A
`lambda=h/(sqrt2m(KE))=(6.626xx10^(-34)) / sqrt(2xx1xx0.5) =6.626xx10^(-34)` m
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