Question

An object and it's image by a mirror of focal length ‘f’ have distances from the focus in the ratio 1:4, the object distance is————————

Answer 1

The focal length of a concave mirror is f and the distance from the object to the principle focus is x. The ratio of the size of the image to the size of the object is .

Answer 2

Answer:

3f/2

Explanation:

4x²= f²

=x=f/2

f+f/2

u= 3f/2

hope it helps.

please mark me as brainliest