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Image Formation by Spherical Mirrors

A smooth poli...

Question

A smooth polished surface which can return the rays of light into the same medium is called
(a) mirror
(b) lens
(c) prism
(d) table top

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Solution

(a) Mirror

A smooth, polished surface that can return the rays of light into the same medium is called a mirror.

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Q. A smooth polished surface that can return the rays of light and form a clear image is called a

(a) lens
(b) glass
(c) mirror
(d) all of these

Q. Fill in the blanks with the correct words.

1. We get diffused reflection from a .................... (rough/smooth) surface.
2. A smooth polished surface that can return the rays of light incident on it to form a clear image is called a .................... (lens/mirror).
3. Convex and concave mirrors can both form .................... (real/virtual) images.
4. A lens is made of a .................... (translucent/transparent) material.
5. .................... (White/Blue) light consists of many colours.

Q. Fill in the blanks:
1. The phenomenon of turning back of light into the same medium on striking a polished surface is called ........................ of light.
2. A ........................ image is always inverted.
3. In a spherical mirror, if the reflecting surface is on the outside, it is called a ........................ mirror.
4. ........................ lens is thicker in the middle and thinner at the edges.

Q. A mirror is a smooth surface which can change the direction of light falling on it such that it returns to the same medium.

Which of the following produces diffuse reflection of light?

(a) mirror on a dressing table

(b) water surface of a pond

(c) screen in a cinema hall

(d) polished wooden table

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