A watch shows time as 3 : 25 when seen through a mirror, time appeared will be
A ray of light is incident at 50Â° on the middle of one of the two mirrors
A man having height 6 m. He observes image of 2m height erect, then mirror used is
A ray of light incidenting normally on a plane mirror. The angle of reflection will be
A man runs towards a mirror at a speed 15m/s The speed of the image relative to the man is
A ray of light incidents on a plane mirror at an angle of 30Â° . The deviation produced in the ray is
A light bulb is placed between two plane mirror inclined at angle of 60Â°. The number of images formed are
Two mirrors are inclined at an angle of 50Â° . The number of images formed for an object placed in between the mirrors is
a person is in a room whose ceilling and two adjacent walls are mirrors.How many images are formed
An object is at a
A man length h requires a mirror
A man runs towards mirror at a speed of
A beam of light from a source L is incident normally
Two mirrors at an angle
a thin glass (refractive index 1.5) lens has optical power of
To get three images of a single object, one should have two plane mirrors at an angle of
A small object is placed 10cm infront of a plane mirror
A light beam is being reflected by using two mirrors, as in a periscope used in submarines
A plane mirror reflects is a pencil of light to form a real image
A real object is placed at a distance f from the pole of a convex mirror, in front of the convex mirror. If focal length of the mi..
The magnifying power or a telescope is m. If the focal length of the eye piece is halved, then its magnifying power is
Two plane mirrors arc inclined at an angle . It is found that a ray incident on one mirror at any angle is rendered parallel to it..
The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by
The far point of myopia person is 80 cm in front of his eye. The power of the lens required to see very distant objects is
Two plane mirrors are at right angles to each other
If two mirrors are kept at 60Â° to each other, then the number of images formed by them is
Two plane mirrors are perpendicular to each other. A ray after suffering reflection from the two mirrors will be
Two plane mirror are inclined to each other such that a ray of light incident on the first mirror
VAn object is placed at a distance 20 cm from the pole of a convex mirror of focal length 20 cm. The image is produced at
When light wave suffres reflaction at the interface from air to glass
The power of plane mirror is
A thick plane mirror shows a number of images of the filament of an electric bulb
Where should a person stand straight from the pole of a convex mirror of focal length 2.0 m on its axis, so that the image formed ..
A man is 180cm tall and his eyes are 10cm below the top of his head
A ray of light is incident on a plane mirror at an angle of 60 degree . The angle of deviation produced by the mirror is
An astronomical telescope has objective and eye piece lenses of powers 0.5 D and 20 D. respectively. What will be its magnifying p..
the refractive index of glass is 1.520 for red light and
two point white dots are 1mm apart on a block paper on a block paper.
A plane mirror produces a magnification of
an object 2.4 m in front of a lens forms a sharp image on a film
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