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Question

An air bubble is present in a glass (μ = 1.5) at a distance of 3 cm from the curved convex surface of radius 5 cm. Position of the image of bubble is
(μ is refraction index)

A
1.67 cm
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B
2.5 cm
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C
3.8 cm
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D
6 cm
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Solution

The correct option is B 2.5 cm
As we know that the refraction through curved surface is given by,
μ2vμ1u=μ2μ1R

1v1.53=11.55

1v+0.5=0.1

1v=0.4

v=10.4 cm=2.5 cm

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