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Tardigrade
Question
Physics
An α particle and a carbon 12 atom has same kinetic energy K. The ratio of their de-Broglie wavelength (λa: λC 12) is :
Q. An
α
particle and a carbon
12
atom has same kinetic energy
K
. The ratio of their de-Broglie wavelength
(
λ
a
:
λ
C
12
)
is :
4091
169
JEE Main
JEE Main 2022
Dual Nature of Radiation and Matter
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A
1
:
3
B
3
:
1
C
3
:
1
D
2
:
3
Solution:
k
=
2
m
P
2
⇒
P
α
m
Now
λ
=
p
h
So,
λ
α
p
1
⇒
λ
α
m
1
λ
C
12
λ
α
=
1
3