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प्रश्न
Define the following term in relation to concave mirror.
Focal length
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उत्तर
The linear distance between the pole and the principal focus is called focal length.
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संबंधित प्रश्न
What type of image is formed:
in a plane mirror?
What is the name of the phenomenon in which the right side of an object appears to be the left side of the image in a plane mirror?
Define (a) centre of curvature (b) radius of curvature (c) pole (d) principal axis, and (e) aperture, of a spherical mirror with the help of a labelled diagram
How is a spherical mirror used to diverge a beam of light from a point? Name the type of mirror used.
What is a spherical mirror?
Name the kind of mirror used to obtain :
A real and enlarged image
A point light source is kept in front of a convex mirror at a distance of 40 cm. The focal length of the mirror is 40 cm. Find the position of image.
Select the correct option:
A mirror forms a virtual image (diminished) of an object, whatever be the position of object:
What is the difference between virtual images of an object formed by a concave mirror and a convex mirror?
