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A 200g golf ball is moving with a speed of 5 m per hour. The associated wave length (h = 6.625 x 10 -34 J sec)is:
(1) 10- 10 m
(2) 10 -20 m
(3) 10 -30 m
(4) 10 -40 m
Ans: 10 -30 m
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