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Byju's Answer
Standard XII
Chemistry
Introduction to Quantum Mechanical Model
If the thresh...
Question
If the threshold wavelength (
λ
0
) for ejection of an electron from metal is 330 nm, then work function for the photoelectric emission is
6
×
10
16
+
y
. The value of
y
is:
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Solution
As we know,
W
=
h
v
0
=
h
c
λ
0
=
6.6
×
10
−
34
J
s
×
3
×
10
8
m
330
×
10
−
9
m
=
6
×
10
−
19
.
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Q.
If the threshold wavelength
(
λ
0
)
for ejection of electron from metal is 330 nm, then work function for the photoelectric emission is:
(Planck's constant (h) =
6.6
×
10
−
34
J s
)
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