Q. 14.5( 72 Votes )

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Answer :

a. An image that cannot be obtained on a screen is called virtual image.

Explanation: There are two types of images which can be formed: real images and virtual images. Real images are the images which can be obtained on a screen whereas virtual images can’t be obtained on a screen.

b. Image formed by a convex mirror is always virtual and smaller in size.

Explanation: Convex mirrors always form a virtual image which means that the image can’t be obtained on the screen and also the image is small in size i.e. diminished and upright image of an object.

c. An image formed by a plane mirror is always of the same size as that of the object.

Explanation: Plane mirrors forms the same size of the image as that of object.

d. An image which can be obtained on a screen is called a real image.

Explanation: There are two types of images which can be formed: real images and virtual images. Real images are the images which can be obtained on a screen whereas virtual images can’t be obtained on a screen.

e. An image formed by a concave lens cannot be obtained on a screen.

Explanation: Concave lens always forms a virtual image and a virtual image can’t be obtained on screen.

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