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Region I and II are separated by a spher...

Region I and II are separated by a spherical surface of radius 25 cm. An object is kept in region I at a distance of 40 cm from the surface. The distance of the image from the surface is :

A

9.52 cm

B

37.58 cm

C

55.44 cm

D

18.23 cm

Text Solution

Verified by Experts

The correct Answer is:
B
`(mu_(2))/( v) - (mu_(1))/(u) = (mu_(2) - mu_(1))/(R)`
`= (1.4)/(v) - (1.25)/(-40) = (1.4 -1.25)/(-25)`
`(1.4)/(v) = - (0.15)/(25) - (1.25)/(40)`
v = - 37.58 cm
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