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प्रश्न
What is the relationship between the focal length and radius of curvature?
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उत्तर
The relationship between the focal length, f, and radius of curvature, r is
f = 1/2 x r.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Pole
Define Radius of curvature of the spherical mirror
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
- What will be the focal length of this mirror?
- Which type of spherical mirror will it provide?
- State whether this spherical mirror will diverge or converge light rays.
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
An object is placed at 4 cm distance in front of a concave mirror of radius of curvature 24 cm. Find the position of image. Is the image magnified?
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
Numerical problem.
The radius of curvature of a spherical mirror is 25 cm. Find its focal length.
