Question

An object is situated at a distance of 20cm from a convex mirror of radius of curvature 20cm. Find the position and nature of image

Answer 1

Answer:

u = - 20 cm

r = 20 cm

f = 1/2r

= 1/2*20 cm

= 10 cm

1/f = 1/u+1/v

1/10 = -1/20 + 1/v

1/10+1/20 = 1/v

(2+1)/20 = 1/v

3/20 = 1/v

20/3 cm = v

or,

6.66 cm = v

Nature of Image:

1. Image is virtual.

2. Image is of smaller size as compared to the object i.e. diminished.

3. Image is not inverted.

Hope This Helps.