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संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal focus
Image formed by a convex ______ is always virtual and smaller in size.
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?
Which are the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain with the help of suitable ray diagrams.
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
What is the focal length (f) of a mirror?
