Question

a point object is placed at a distance of 30 cm from a conex mirror of focal length 30 cm. image formed will be at?

Answer 1

Hi Friend ✋✋

f = 30 cm

u = -30 cm

we need to ring v = ?

1/v = 1/f - 1/u

1/v = 1/30 - (1/-30)

1/v = 1/30 + 1/30

1/v = 2/30

v = 15 cm


image will be formed 15cm behind the mirror.


hope it helps

Answer 2

By using the formulae,

1/v=1/f-1/u

I hope it will help for u ☺.