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प्रश्न
State the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain your answer with the help of suitable ray diagrams.
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उत्तर
Two convenient rays that are chosen to construct the image by a spherical mirror for a given object:
- A ray passing through the centre of curvature:A ray of light passing through the centre of curvature of a concave mirror or a ray directed in the direction of centre of curvature of a convex mirror is reflected back along the same path after reflection.
2. A ray parallel to the principal axis: A ray of light parallel to the principal axis, after reflection pass through the principal focus in case of a concave mirror or appears to diverge from it in case of convex mirror.
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संबंधित प्रश्न
A concave mirror always forms a real image.
A diverging lens is used in:
(a) a magnifying glass
(b) a car to see objects on rear side
(c) spectacles for the correction of short sight
(d) a simple camera
State the two kinds of spherical mirror and distinguish them with the aid of proper diagrams.
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray:
The spherical mirror with a reflecting surface curved inward is called
Numerical problem.
The radius of curvature of a spherical mirror is 25 cm. Find its focal length.
Spherical mirrors are one form of ______ mirrors.
