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IUT_14-15
HSC - পদার্থ বিজ্ঞান ২য় পত্র
→
অধ্যায়-০৭ঃ ভৌত আলোকবিজ্ঞান
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All Topics
A diffraction grating has
6000
l
i
n
e
s
/
c
m
6000\ lines/cm
6000
l
in
es
/
c
m
. If light of wavelength
5896
A
˚
5896\mathring{A}
5896
A
˚
is incident on the grating, what is the diffraction angle for the second maximum?
A.
4
8
∘
48^{\circ }
4
8
∘
B.
5
5
∘
55^{\circ }
5
5
∘
C.
4
3
∘
43^{\circ}
4
3
∘
D.
4
5
∘
45^{\circ}
4
5
∘
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