Question

of curvature is 20 cm and an object is placed 260 cm from the refracting surface,
9. A convex surface separates t
wo media of refractive indices 1.3 and 1.5. If the radius
calculate the distance of image from surface.
ar​

Answer 1

Answer:

Correct option is B)

Using, −

u

μ

1

+

v

μ

2

=

R

μ

2

−μ

1

Here, R = 20 cm, μ

1

=

3

4

,μ

2

=1.60,u=−200cm

∴−

−200

4/3

+

v

1.60

=

20

1.60−(4/3)

⇒v=240m