Question

An object is placed at a distance
of 40 cm in front of a concave mirror of focal length 15th
Calculate image distance ​

Answer 1

Answer:

-24cm

Explanation:

u= -40cm

f=  -15cm

1/f  =1/v+1/u

1/v = 1/f - 1/u

    = -1/15+1/40

    = -1/24cm

v   =  -24cm