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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
A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal length of the mirror?
Explain the following term related to spherical lenses:- principal axis
What is a virtual image?
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
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?
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.
Complete the following diagrams shown in the following figures by drawing the reflected rays.
An object is placed at a distance of 0.25 m
in front of a plane mirror. The distance between the object and image will be ______.
