If two mirrors are placed at an inclination of `30^@` then how many images can be seen?

A light bulb is placed between two mirrors (plane) inclined at an angle of 60^@ . Number of a real images. images formed are

Two plane mirror are inclined at an angle of 72^@ . The number of images of a point object placed between them will be

If two plane mirrors are inclined to each other at an angle of 45^@ , find the mumber of images formed.

If two mirrors are kept at 60^(@) to each other and a body is placed at the middle, then total number of images formed is

If two circles are touching externally, how many common tangents of them can be drawn ?

Two mirror are parallel to each other, then the number of images formed is _____.

A small candle 2.5 cm in size is placed at 27 cm in front of a concave mirror of radius of corvature 36 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp image? Describe the nature and size of the image. If the candle is moved closer to the mirror, how would the screen have to be moved ?

A concave mirror gives an images three times as large as the object placed at a distance of 20 cm from it. For the images to be real, the length should be

Two plane mirrors are inclined at 70^@ . A ray incident on one mirror at angle theta after reflection falls on second mirror and is reflected from there parallel to first mirror. The vaule of theta is

An object place in front of a plane mirror is displaced by 0.4 m along a straight line at angle of 30^@ to mirror plane, the change in the distance between the object and its image is