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JEEMAIN and NEET
>>
Physics
>>
Class12
>>
Wave Optics
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Q)
Parallel beam of monochromatic light of wavelength
λ
=
4800
˚
A
is incident on a single slit of size
0.2
m
m
. The angular divergence in which most of light is diffracted is [ie between two 1st order maxima on both sides]
(
a
)
1.22
×
10
−
3
r
a
d
(
b
)
2.4
×
10
−
3
r
a
d
(
c
)
4.8
×
10
−
3
r
a
d
(
d
)
2.4
×
10
−
2
r
a
d
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