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Standard XII
Physics
Applying NLM along 3 Axis
Determine app...
Question
Determine apparent depth of the beaker.
A
170
cm
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B
140
cm
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C
85
cm
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D
75
cm
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Solution
The correct option is
C
85
cm
Apparent depth at multiple surface is given by
h
a
p
p
=
h
1
μ
1
+
h
2
μ
2
+
h
3
μ
3
.
.
.
Here,
h
1
=
h
2
=
60
cm
;
μ
1
=
4
/
3
;
μ
2
=
3
/
2
⇒
h
a
p
p
=
60
4
/
3
+
60
3
/
2
⇒
h
a
p
p
=
45
+
40
=
85
cm
Hence, option
(
c
)
is correct.
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Applying NLM along 3 Axis
Standard XII Physics
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