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JEE Advanced 2014 Paper 2
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© examsnet.com
Question : 3
Total: 60
If
λ
c
u
is the wavelength of
K
α
X-ray line of copper (atomic number 29) and
λ
M
o
is the wavelength of the
K
α
X-ray line of molybdenum (atomic number 42), then the ratio
λ
c
u
λ
M
o
is close to
1.99
2.14
0.50
0.48
Validate
Solution:
λ
c
0
λ
M
=
(
Z
M
O
−
1
Z
C
u
−
1
)
2
© examsnet.com
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