Two particles having mass M1 = 4 gm, M2 = 16 gm. If kinetic energy of both the particle is equal then ratio of their momentum is n : 2 then n is:
(1) 2
(2) 1/2
(3) 4
(4) 1/4
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K1=K2 --{given} ⇒p122m1=p222m2 ⇒(p1p2)2=m1m2 ⇒(p1p2)=m1m2 ⇒m1:m2 given m1=4g m2=16g ⇒4:16 ⇒1:4 ⇒1:2n:2 = 1:2 therefore n=1
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