Questions in Ray Optics and Optical Instruments

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	Two vertical plane mirrors are inclined at an angle of $60^\circ $ with each other. A ray of light travelling horizontally is reflected first from one mirror and then from the other. The resultant deviation is
	A plane mirror reflects a pencil of light to form a real image. Then the pencil of light incident on the mirror is
	What should be the angle between two plane mirrors so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mirrors be parallel to each other
	A plane mirror reflecting a ray of incident light is rotated through an angle $\theta $ about an axis through the point of incidence in the plane of the mirror perpendicular to the plane of incidence, then
	A plane mirror is approaching you at a speed of $10\,cm/sec$ You can see your image in it. At what speed will your image approach you
	A light bulb is placed between two plane mirrors inclined at an angle of $60^\circ $. The number of images formed are
	It is desired to photograph the image of an object placed at a distance of $3m$ from the plane mirror. The camera which is at a distance of $4.5m$ from the mirror should be focussed for a distance of
	A thick plane mirror shows a number of images of the filament of an electric bulb. Of these, the brightest image is the
	A man is $180cm$ tall and his eyes are $$ below the top of his head. In order to see his entire height right from toe to head, he uses a plane mirror kept at a distance of $1m$ from him. The minimum length of the plane mirror required is
	A person is in a room whose ceiling and two adjacent walls are mirrors. How many images are formed

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