Question

NUMERICAL PROBLEM.

please पूरा खोल कर solve कर देना पहले की तरह 20 cm answer तो लिखकर मत भेज देना

Find focal length of a concave mirror having 40cm.radius of curvature​

Answer 1

Answer:

roi DJ DJ DJ DJ‍‍‍‍‍‍‍‍‍‍‍‍‍‍ and I'm

Explanation:

stillness

P do to make a difference between us to be a good day for

Answer 2

Answer:

20 cm.

If it helps mark me as brainliest.

Explanation:

Focal length

= Radius of curvature/2

=40 cm/2

=20 cm.