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JEE Main Physics Class 12 Wave Optics Part 2 Questions
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© examsnet.com
Question : 40
Total: 58
As shown in the figure, in Young's double slit experiment, a thin plate of thickness
t
=
10
µ
m
and refractive index
µ
=
1.2
is inserted infront of slit
S
1
. The experiment is conducted in air
(
µ
=
1
)
and uses a monochromatic light of wavelength
λ
=
500
nm
. Due to the insertion of the plate, central maxima is shifted by a distance of
x
β
0
.
β
0
is the fringe-width before the insertion of the plate. The value of the
x
is ______.
[1-Feb-2023 Shift 2]
Your Answer:
Validate
Solution:
Fringe shift
=
t
(
µ
−
1
)
λ
B
=
10
×
10
−
6
(
1.2
−
1
)
5
×
10
−
7
B
=
10
−
5
×
0.2
5
×
10
−
7
=
4
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