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Standard XII
Chemistry
Question
Two particles of mass
m
and
2
m
have equal kinetic energy. Their De Broglie wavelengths are in the ratio:
1
:
1
1
:
√
2
1
:
2
√
2
:
1
A
1
:
2
B
√
2
:
1
C
1
:
1
D
1
:
√
2
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Solution
Verified by Toppr
As we know,
λ
=
h
/
m
v
λ
=
h
√
2
m
E
as the kinetic energy of both particles are same so
λ
∝
1
√
m
λ
1
λ
2
=
√
2
1
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Q1
When two particles of masses m and 2m have equal kinetic energies. Find the ratio of their de Broglie wavelengths.