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प्रश्न
A ray of light travels from a denser medium to a rarer medium. How will it bend?
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उत्तर
When a ray of light travels from a DENSER medium to a RARER medium it will bend AWAY from normal
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- centres of curvature
A virtual image larger than the object can be produced by a ______.
A 50 cm tall object is at a very large distance from a diverging lens. A virtual, erect and diminished image of the object is formed at a distance of 20 cm in front of the lens. How much is the focal length of the lens?
An optical device has been given to a student and he determines its focal length by focusing the image of the sun on a screen placed 24 cm from the device on the same side as the sun. Select the correct statement about the device.
(A) Convex mirror of focal length 12 cm
(B) Convex lens of focal length 24 cm
(C) Concave mirror of focal length 24 cm
(D) Convex lens of focal length 12 cm
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
Name the two kinds of spherical mirrors and distinguish between them.
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
The image formed by a convex mirror is
An object of height 2 cm is placed at a distance of 20 cm in front of a concave mirror of a focal length of 12 cm. Find the position, size, and nature of the image.
Define the term Centre of curvature.
