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A point source is located at a distance of 20 cm from the front surface of a glass biconvex lens. The lens has thickness of 5 cm and radius of curvature of it’s surfaces is 5 cm. The refractive index of glass is 1.5. The distance of image formed by it from the rear surface of this lens is ……..(approximately)

(a)

9.2 cm

(b)

6.3 cm

(c)

5.7 cm

(d)

4 cm


Question ID - 154001 | Toppr Answer

A point source is located at a distance of 20 cm from the front surface of a glass biconvex lens. The lens has thickness of 5 cm and radius of curvature of it’s surfaces is 5 cm. The refractive index of glass is 1.5. The distance of image formed by it from the rear surface of this lens is ……..(approximately)

(a)

9.2 cm

(b)

6.3 cm

(c)

5.7 cm

(d)

4 cm

1 Answer - 5876 Votes

3537

Answer Key : (d) -

4 cm



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