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Question
Q208) The wavelength associated with a ball of 200 g and moving with a speed of 5 m/hour is of the order of



SOLUTION

v = 5 m/hour =5/3600 m/s
m =200 g = 0.2 kg
h =6.6× 10-34 J-s
Use forula
λ = h/p, p=mv

Answer:(c)