MHT CET202015 Oct 2020Morning ShiftPhysicsWork, Power and EnergyActual
Two masses of 1 gram and 4 gram are moving with equal kinetic energy. The ratio of the magnitudes of their momenta is
Options
- A4: 1
- B2 : 1
- C1: 12
- D1: 16
Correct answer
C. 1: 12
Step-by-step solution
Kinetic energy K = p ² 2 ~m Two masses are given as- m ₁=1 gm and m ₂=4 gm But K ₁= K ₂ p ₁² 2 ~m ₁ = P ₂² 2 ~m ₂ Or P ₁² 2(1) = P ₂² 2(4) P ₁: P ₂=1: 2