Physics, asked by pramobtiwari, 11 months ago

The Radius of curvature of a convex mirror is 5 cm . find it's Focal length ❤️❤️✌️✌️ answer plzz​

Answers

Answered by Apoorvatripathi
2

R = 5 cm

f = R/2

= 5/2

= 2. 5 cm


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Answered by gayatrikumari99sl
0

Answer:

2.5cm is the focal length of the convex mirror.

Explanation:

Given, radius of curvature of a convex mirror = 5cm.

  • Radius of curvature of a convex mirror,convex or concave mirrors have a radius of curvature that is equal to two times their respective focal lengths.
  • The radius of the sphere created by the convex or concave mirror is the radius of curvature.

Focal length;

  • The distance between the optical centre and the main Focus is known as the focal length of a convex lens and is represented by the symbol f.

Relation between focal length and radius of curvature:

It has been found that the radius of curvature for spherical mirrors with small apertures is equivalent to double the focal length.

Therefore, R =  2f.

We have, R = 5cm

⇒f = \frac{R}{2} = \frac{5}{2} = 2.5cm

Hence, focal length of the convex mirror is 2.5cm.

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