Question

4. Which of the following is not a characteristic of a plane mirror?

(a) The magnification of the image formed is 1.

(b) The image can be formed on a screen

(c) The image formed is erect.

(d) The image is formed at the same distance behind the mirror as the object is in front of it.​

Answer 1

(b) The image can be formed on a screen

is wrong one.

.

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Answer 2

"The image can be formed on a screen" is not a characteristic of a plane mirror. (option b)

• One of the characteristics of the image formed by a plane mirror is that it is a virtual image and cannot be obtained on a screen, as plane mirrors do not converge the light rays to a point.
• Since only real images can be formed on screens, it is not possible in the case of plane mirrors, as only virtual images can be formed with the help of plane mirrors.
• Other characteristics of the image obtained using a plane mirror are, that the distance of the image is the same behind the mirror as that of the object in front of it. The image is virtual and erect. The image is of the same size as the object.