A ray of light incidenting normally on a plane mirror. The angle of reflection will be
A ray of light is incident at 50Â° on the middle of one of the two mirrors
Focal length of a plane mirror is
A man runs towards a mirror at a speed 15m/s The speed of the image relative to the man is
A light bulb is placed between two plane mirror inclined at angle of 60Â°. The number of images formed are
A ray of light incidents on a plane mirror at an angle of 30Â° . The deviation produced in the ray is
a person is in a room whose ceilling and two adjacent walls are mirrors.How many images are formed
Two mirrors are inclined at an angle of 50Â° . The number of images formed for an object placed in between the mirrors is
If two mirrors are kept at 60Â° to each other, then the number of images formed by them is
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..
An object is at a
a thin glass (refractive index 1.5) lens has optical power of
A man length h requires a mirror
A man runs towards mirror at a speed of
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..
Two plane mirrors are perpendicular to each other. A ray after suffering reflection from the two mirrors will be
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
The magnifying power or a telescope is m. If the focal length of the eye piece is halved, then its magnifying power 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..
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
Two mirrors at an angle
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 light beam is being reflected by using two mirrors, as in a periscope used in submarines
To get three images of a single object, one should have two plane mirrors at an angle of
A beam of light from a source L is incident normally
A plane mirror reflects is a pencil of light to form a real image
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
A small object is placed 10cm infront of a plane mirror
Two plane mirrors are at right angles to each other
The power of plane mirror is
Two plane mirror are inclined to each other such that a ray of light incident on the first mirror
A thick plane mirror shows a number of images of the filament of an electric bulb
When light wave suffres reflaction at the interface from air to glass
A man is 180cm tall and his eyes are 10cm below the top of his head
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.
an object 2.4 m in front of a lens forms a sharp image on a film
If sound travelling at 340 ms^-1 enters water where its speed becomes 1480 ms-^-1, then critical angle for total internal reflecti..
two coils are placed closed to each other. the mutual
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