Question

An object is placed at a distance of 15cm from convex mirror of focal length 200cm. Find the position and nature of the image.​

Answer 1

Explanation:

Given = object distance, u = -15cm

Focal length, F = 200 cm

To find = position and nature of image

We know that,

1/f = 1/v+1/u

1/200 = 1/v + 1/(-15)

1/200 = 1/v - 1/15

1/200 + 1/15 = 1/v

300 + 40/600 = 1/v

340/600 = 1/v

v = 1.76 cm

The positive sign shows that the image formed will be virtual and erect, and the image will formed behind the mirror.