Question

a concave mirror forms a sharp image of a distant tree ? what name is given to distance between the concave mirror and screen on which sharp image is forced​

Answer 1

Answer:

I hope it's helpful for you please marks me as brainlist

Explanation:

its called as d focal lenght of d mirror... The image of the distant tree will be formed at the focus of the concave mirror . So the screen will be placed at the focus & the distance between screen & mirror will be called its Focal length

Answer 2

Answer:

Focal length.

Explanation:

It is called focal length