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Byju's Answer
Standard XII
Physics
Refraction through Multiple Spherical Surfaces
A hollow conv...
Question
A hollow convex lens of glass will behave like a
A
Convex lens
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B
Concave lens
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C
Glass plate
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D
Mirror
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Solution
The correct option is
C
Glass plate
Hollow convex lens is as shown in figure.
1
f
1
=
(
μ
g
−
1
)
(
1
R
1
−
1
R
2
)
=
0
(
a
s
R
1
=
R
2
)
or
f
1
=
∞
Similarly,
f
2
=
∞
Therefore, a hollow convex lens of any material will behave like a glass plate.
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