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प्रश्न
Define the term Centre of curvature.
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उत्तर
Centre of curvature is the centre of the imaginary sphere to which the mirror belongs.
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संबंधित प्रश्न
A student used a device (X) to obtain/focus the image of a well illuminated distant building on a screen (S) as shown below in the diagram. Select the correct statement about the device (X).
A 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12 cm and its sharp image is formed at a distance of 24 cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again? How will the magnification of the image be affected?
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
Write the mirror formula. Give the meaning of each symbol which occurs in it.
Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.
Define the following term in relation to concave mirror.
Center of curvature
Define the following term in relation to concave mirror.
Principal axis
Define the following term in relation to concave mirror.
Radius of curvature
A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.
