Question

If an object is placed at 15cm from a concave mirror of focal length 5 cm, Find
the position of the image.

Answer 1

Explanation:

1/15-1/5 =1/v

-2/15=1/v

Answer 2

Answer:

Image distance = -7.5cm

Explanation:

Focal length (f)= -5cm

Object distance(u)= -15cm

Image distance (v)=?

1/f=1/v+1/u [Mirror formula]

1/-5=1/v+1/-15

-1/5=1/v-1/15

-1/5+1/15=1/v

-3/15+1/15=1/v

(-3+1)/15=1/v

-2/15=1/v

v= -15/2

v= -7.5cm

HOPE THIS BRING A SMILE IN YOUR FACE