The relationship between the focal length f and radius of curvature R for a spherical mirror is:

$f = 2 R$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$f = \frac{R}{2}$

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

$R = 2 f$

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

$R = 4 f$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct options are
B
$f = \frac{R}{2}$

C
$R = 2 f$

For a spherical mirror, the radius of curvature is twice its focal length. The focus lies in the middle of the radius of the curvature.

So, $R = 2 f$ or $f = \frac{R}{2}$ .

Suggest Corrections

Similar questions

Q. What is the relationship between the focal length

f

and radius of curvature

R

for a spherical mirror?

What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror or convex mirror) ? Calculate the focal length of a spherical mirror whose radius of curvature is 25 cm.

Q. The relation between focal length F and radius of curvature R of a spherical mirror of small aperture is given by

Which of the following relations hold good for 'R' and 'F', where 'R' is the radius of curvature of a spherical mirror and 'F' is the focal length of the mirror?

Q. What is the relationship between focal length

(f)

and radius of curvature

(R)

Join BYJU'S Learning Program

The relationship between the focal length f and radius of curvature R for a spherical mirror is:

The correct options are B f=R2 C R=2f For a spherical mirror, the radius of curvature is twice its focal length. The focus lies in the middle of the radius of the curvature. So, R=2f or f=R2.

The correct options are
B
$f = \frac{R}{2}$

C
$R = 2 f$

For a spherical mirror, the radius of curvature is twice its focal length. The focus lies in the middle of the radius of the curvature.

So, $R = 2 f$ or $f = \frac{R}{2}$ .