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JEEMAIN-2017
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Q)
A particle A of mass m and initial velocity
v
collides with a particle
B
of mass
m
2
which is at rest. The collision is head on, and elastic. The ratio of the de-Broglie wavelengths
λ
A
to
λ
B
after the collision is :
(
1
)
λ
A
λ
B
=
1
3
(
2
)
λ
A
λ
B
=
2
(
3
)
λ
A
λ
B
=
2
3
(
4
)
λ
A
λ
B
=
1
2
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