Question

find the position of the image formed when an object of size 1cm is placed at a distance of 15 cm from a concave mirror of focal lenght 10 cm​

Answer 1

Answer:

(-30)cm

Explanation:

f=(-10), u=(-15)

1/f=1/v+1/u

1/v=1/f-1/u

1/v=(1/(-10))-(1/(-15))

1/v=1/(-10)+1/15

1/v=((-3)+2)/30

1/v=(-1)/30

v=(-30)

Therefore, the position of the image formed is 30cm.