Question

A 1cm high object is placed 10 cm from a concave mirror with the focal length
f= 15 cm find the image distance
2. -30
3. 20
4. -20
14.30​

Answer 1

Answer:

2.-30

Explanation:

answer hai yea, please try

Answer 2

Answer:

-30

Explanation:

1/f=1/v+1/u

1/15=1/v+1/10

10/150-15/150=1/v

v=150/-5

v = -30