Question

The two particles A and B have de Broglie wave lengths 1 nm and 5 nm respectively. If mass of A is 4 times that of mass of B. the ratio of KE of A and B would be (KE = kinetic energy) 1) 5:1 2) 25 : 4 3) 20:1 4) 5:4​

Answer 1

Answer:

25:4

Explanation:

λ=2mK.Eh

λA:λB=1:5

mA:mB=4:1

K.EA:K.EB=25:4

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