Question

7. An object is placed at a certain distance on the principal axis of a concave mirror. The image
is formed at a distance of 30 cm from the mirror. Find the object distance if radius of curvature
R= 15 cm
a) 15 cm
b) 10 cm c)30 cm
d) 7.5 cm​

Answer 1

Answer:

I think it will be 7.5 because it is concave mirror

Answer 2

An object is placed at a certain distance on the principal axis of a concave mirror. The image

is formed at a distance of 30 cm from the mirror. Find the object distance if radius of curvature

Answer:

d) 7.5 cm