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JEEMAIN and NEET
>>
Physics
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Class11
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Work, Power and Energy
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Q)
An electron of mass
′
m
′
moving with velocity
′
v
′
collids head on with an atom of mass M. As a result of the collision a certain fixed amount of energy
Δ
E
is stored internally in the atom. The minimum initial velocity possessed by the electron is
a
)
√
2
(
M
+
m
)
Δ
E
M
m
b
)
√
2
(
M
−
m
)
Δ
E
M
m
c
)
√
2
M
Δ
E
M
m
d
)
z
e
r
o
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