Question 1
Which of the following can make a parallel beam of light when light from a point source is incident on it?

(a) Concave mirror as well as convex lens
(b) Convex mirror as well as concave lens
(c) Two plane mirrors placed at 90° to each other
(d) Concave mirror as well as concave lens

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Solution

(a) Concave mirror as well as convex lens

Concave mirror as well as convex lens can make a parallel beam of light when light from a point source is incident on it.

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Q. Question 1
Which of the following can make a parallel beam of light when light from a point source is incident on it?

(a) Concave mirror as well as convex lens
(b) Convex mirror as well as concave lens
(c) Two plane mirrors placed at 90° to each other
(d) Concave mirror as well as concave lens

Q. Which of the following can make a parallel beam of light when light from a bulb falls on it?

(a) concave mirror as well as concave lens
(b) convex mirror as well as convex lens
(c) concave mirror as well as convex lens
(d) convex mirror as well as concave lens

Which of the following can make a parallel beam (a) concave mirror as well as concave lens (b) convex mirror as well as convex lens (c) concave mirror as well as convex lens (d) convex mirror as well as concave lens

Q. Question 11
A full length image of a distant tall building can definitely be seen by using

(a) a concave mirror
(b) a convex mirror
(c) a plane mirror
(d) both concave as well as plane mirror

Q. A concave lens of focal length 20 cm placed in contact with a plane mirror acts as a

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Question 1 Which of the following can make a parallel beam of light when light from a point source is incident on it? (a) Concave mirror as well as convex lens (b) Convex mirror as well as concave lens (c) Two plane mirrors placed at 90° to each other (d) Concave mirror as well as concave lens

(a) Concave mirror as well as convex lens Concave mirror as well as convex lens can make a parallel beam of light when light from a point source is incident on it.

Question 1
Which of the following can make a parallel beam of light when light from a point source is incident on it?

(a) Concave mirror as well as convex lens
(b) Convex mirror as well as concave lens
(c) Two plane mirrors placed at 90° to each other
(d) Concave mirror as well as concave lens

(a) Concave mirror as well as convex lens

Concave mirror as well as convex lens can make a parallel beam of light when light from a point source is incident on it.