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A cricket ball of 0.5 kg is moving with a velocity of 100 m/ sec . The wavelength associated with its motion is:
(1) 1/ 100cm
(2) 6.6 x10 -34m
(3) 1.32 x 10 -35 m
(4) 6.6 x 10 -28 m
Ans: 1.32 x 10 -35 m
What is the principle underlying the extraction of metal
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