Question

28.
3
2
a)
A coin is placed at the bottom of a trough of height 16cm. On fing,
trough completely with water, the coin appears to be raised by 4cm, w
is the refractive index of water?
A rectangular tank 6m deep is full of water. By how much does the bous
of the tank appear to be raised when viewed from above. Given the
A glass slab 12cm thick is placed on a mark. When seen through the stab
5
3
refractive index of water is 1.33.
a) 3m
b) 4.5m
b)
c)
3
29,
d) бm
c) 1.5m
30.
a) 2x10' m/s
31.
the mark appears to be raised through 4cm. If the velocity of light in air is
3*10'* cm/sec, calculate its velocity in glass.
b) 2x10 cm/s
C) 2 x 10 cm
d) None
A layer of benzene (u=1.5) 6m deep floats on water (u=1.33), 4cm de
When viewed vertically through air, the apparent distance of the bottore
the vessel below the free surface of benzene is.....
c) 21cm
d) 3.5cm
al 14cm
bl 7 cm​

Answer 1

Answer:

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Answer 2

Answer:

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Explanation:

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