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प्रश्न
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
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उत्तर
Incident ray: The light ray striking a reflecting surface is called the incident ray.
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.
State the two kinds of spherical mirror and distinguish them with the aid of proper diagrams.
The radius of curvature of a convex mirror is 40 cm. Find its focal length.
Define the following term:
spherical mirror
In the following figure shows a concave mirror with its pole (P), focus (F) and centre of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.
Define the term Principle focus.
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
Spherical mirrors are one form of ______ mirrors.
Visit a nearby hospital. You can also visit the clinic of an ENT specialist, or a dentist. Request the doctor to show you the mirrors used for examining ear, nose, throat and teeth. Can you recognise the kind of mirror used in these instruments?
