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प्रश्न
Define focal length.
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उत्तर
The distance between the pole and the principal focus is called the focal length (f) of a spherical mirror.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- aperture
Name the kind of mirror used to obtain
(a) a real and enlarged image
(b) a virtual and enlarged image
(c) a real and diminished image, and
(d) a virtual and diminished image.
State whether the image in part (a) is real or virtual?
How is the focal length of a spherical mirror related to its radius of curvature?
The radius of curvature of a convex mirror is 40 cm. Find its focal length.
The magnification for a mirror is -3. How are u and v related?
AB is the object, A1B1 is its image. MM' is the position of the mirror. Complete the ray diagram and find the position of the center of curvature and focus of the mirror. Also, measure the focal length.
