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JEE Mains 12-Apr-2023 Shift 1 Solved Paper
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© examsnet.com
Question : 43
Total: 90
An ice cube has a bubble inside. When viewed from one side the apparent distance of the bubble is
12
cm
. When viewed from the opposite side, the apparent distance of the bubble is observed as
4
cm
. If the side of the ice cube is
24
cm
, the refractive index of the ice cube is
[12-Apr-2023 shift 1]
4
3
3
2
2
3
6
5
Validate
Solution:
Question says small bubble is trapped inside a cube of length
24
cm
. If apparent distance of bubble is
12
cm
and
4
cm
from one and other side and find
x
=
?
Using
Apparent depth
Realdepth
=
µ
2
µ
1
µ
2
=
1
µ
1
is glass
µ
1
=
µ
µ
2
is air
12
d
1
=
1
µ
12
µ
=
d
1
4
d
2
=
1
µ
⇒
(
1
)
d
1
+
d
2
=
24
m
⇒
12
µ
+
4
µ
=
24
⇒
d
2
© examsnet.com
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