Q3 of 42 Page 295

When a plane mirror is rotated through a certain angle, the reflected ray turns through twice as much and the size of the image:

The size of the image does not change when the mirror is rotated by a certain angle. But the reflected ray rotates twice the angle of rotation of incident ray.

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1

Multiple images are formed by a thick plane mirror. Which of the following is the brightest of all the images?

 2

A plane mirror is placed vertically facing due north. An arrow pointing north-east is kept in front of the mirror. In which direction will the arrow point in this image?

 4

The image formed by a convex mirror is only one-third of the size of the object. If the focal length of the mirror is 12 cm, the image formed will be

 5

A beam of light incident on a plane mirror forms a real image on reflection. The incident beam is: