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प्रश्न
A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.
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उत्तर
In the case of a concave mirror if the object is placed at a Focal point then ray emerging from it after reflecting from the mirror would be parallel to the principal axis.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Centre of curvature
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
State whether this spherical mirror will diverge or converge light rays.
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
(D) Convex lens of focal length 12 cm
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
What type of mirror can be used to obtain a real image of an object?
Define the following term in relation to concave mirror.
Principal axis
Define the term Normal.
Draw a ray diagram to show that a convex mirror has a wider field of view.
Define the radius of curvature.
