Question

As shown in the figure, region BCDEF and ABFG are of refractive index 2.0 and 1.5 respectively. A particle O is kept at the mid of region BCEF. Final image of the object as seen by the eye is at a distance (curved part is a spherical one of radius 10 cm)

• A. 30 cm from point D
• B. 22.5 cm from point D
• C. 40 cm from point D
• D. 20 cm from point D

Answer 1

The correct option is A 30 cm from point D

Here only one refraction at spherical surface will take place, so image location will be given by,