Question

A 3 centimetres tall object is placed at a distance of 7.5 cm from a convex mirror of focal length 6 CM then the image will form at
a) 30 by 35 centimetres
b) 3 by 35 centimetres
c) 3 by 9 centimetres
d) 4 by 3 centimetres​

Answer 1

Answer is option B

3 by 35 centimetres.....#Follow me#♥️

Answer 2

Answer:

Given, u=-6cm, f=+12cm

to be find out, v=?,

Using mirror formula

1/v = 1/f - 1/u

1/v = 1/12 - 1/-6

1/v =1/4

V=4 cm behind the mirror

So, the nature of the image is Virtual.