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A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the angle of reflection?
Write the mirror formula. Give the meaning of each symbol which occurs in it.
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
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A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
An optical device has been given to a student and he determines its focal length by focusing the image of the sun on a screen placed 24 cm from the device on the same side as the sun. Select the correct statement about the device.
(A) Convex mirror of focal length 12 cm
(B) Convex lens of focal length 24 cm
(C) Concave mirror of focal length 24 cm
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Answer the following question.
Write the modification in the curvature of the eye lens which enables us to see the nearby objects clearly?
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Center of curvature
Visit a nearby hospital. You can also visit the clinic of an ENT specialist, or a dentist. Request the doctor to show you the mirrors used for examining ear, nose, throat and teeth. Can you recognise the kind of mirror used in these instruments?
