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प्रश्न
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संबंधित प्रश्न
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
Why is a hole burnt in the carbon paper?
What is a spherical mirror?
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
How is the focal length of a spherical mirror related to its radius of curvature?
Why does a driver use a convex mirror instead of a plane mirror as a rear view mirror?
Illustrate your answer with the help of a ray diagram.
State two uses of a concave mirror.
What do you understand by the term real image?
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?
