Question

the radius of curvature of concave mirror is 24 cm then the focal length is​

Answer 1

Answer:

R = 2f

24 = 2f

f = 24 ÷ 2

f = 12

Explanation:

I hope it helps u. .....

Answer 2

Answer:

The focal length is 12 cm .

Given:  

Radius of the curvature (r) = 24 cm

Concave mirror

To find:

Focal length =?

Formula to be used:

$\mathrm{F}=\frac{r}{2}$

Solution:

The space existing between the pole and the curvature center is called as radius of the curvature (r), whereas the space existing between the poles to the focal point is called as focal length (f). Thus it can be inferred that focal length is half of the radius of the curvature.

$\mathrm{F}=\frac{r}{2}=\frac{24}{2}=12 \ \mathrm{cm}$