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From a point source a light falls on a ...

From a point source a light falls on a spherical glass surface (`mu = 1.5` and radius of curvature `= 10 cm`). The distance between point source and glass surface is `50 cm`. The position of image is

A

`25 cm`

B

`50 cm`

C

`100 cm`

D

`150 cm`

Text Solution

Verified by Experts

The correct Answer is:
B
Using, ` (mu_(2))/(v) - (mu_(1))/(u) = (mu_(2) - mu_(1))/(R)`
Here, `mu_(1) = 1, mu_(2) = 1.5, u = -50 cm`
`:. (1.5)/(v) = - (1)/((-50)) = ((1.5-1))/(10) , (1.5)/(v) = 0.05 - 0.02 = 0.03`
`rArr v = 50 cm`
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