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प्रश्न
Draw a ray diagram to show that a convex mirror has a wider field of view.
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उत्तर
In the case of a convex mirror, all rays incident parallel to the principal axis appears to diverge from a Focal point. So it has a wider field of view as it converges all rays to a single point.
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संबंधित प्रश्न
A student focused the Sun rays using an optical device 'X' on a screen S as shown.
From this it may be concluded that the device 'X' is a (select the correct option)
(A) Convex lens of focal length 10 cm.
(B) Convex lens of radius of curvature 20 cm.
(C) Convex lens of focal length 20 cm.
(D) Concave mirror of focal length 20 cm.
Define the following term in the context of spherical mirrors:- Pole
A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the angle of reflection?
What type of image is formed:
- in a plane mirror?
- on a cinema screen?
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
Complete the following diagrams in Figure by drawing the reflected rays for the incident rays 1 and 2.
Define the following term:
concave mirror
Define the following term in relation to concave mirror.
Pole
What do you understand by the term real image?
