Physics-
General
Easy
Question
A point object is moving with a speed v before an arrangement of two mirrors as shown in figure. The magnitude of velocity of image in mirror 
with respected to image in mirror 
is
- 0
The correct answer is:
Related Questions to study
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A point source of light ' S ' at a distance 
from the screen A produces light intensity I0 at the centre of the screen. If a completely reflecting mirror M is placed at a distance behind the source as shown in the figure, treating object and its image as incoherent with each other, find the intensity at the centre of the screen.
A point source of light ' S ' at a distance from the screen A produces light intensity I0 at the centre of the screen. If a completely reflecting mirror M is placed at a distance behind the source as shown in the figure, treating object and its image as incoherent with each other, find the intensity at the centre of the screen.
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A point source of light S is placed in front of two large mirrors as shown. Which of the following observers will see only one image of S?
A point source of light S is placed in front of two large mirrors as shown. Which of the following observers will see only one image of S?
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A two eyed man is looking at the junction of two mutually perpendicular mirrors from a far off distance. Assume no reflection to occur from the edge. Then if both the eyes are open
A two eyed man is looking at the junction of two mutually perpendicular mirrors from a far off distance. Assume no reflection to occur from the edge. Then if both the eyes are open
physics-General
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A point source of light ' S ' is placed at a distance 10 cm in front of the center of a mirror of width 20 cm suspended vertically on a wall. A man walks with a speed 10 cm/s in front of the mirror at a distance of 20 cm from it as shown in figure. Find the maximum time during which he can see the image of the source S in the mirror.
A point source of light ' S ' is placed at a distance 10 cm in front of the center of a mirror of width 20 cm suspended vertically on a wall. A man walks with a speed 10 cm/s in front of the mirror at a distance of 20 cm from it as shown in figure. Find the maximum time during which he can see the image of the source S in the mirror.
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A particle is moving in a circle in front of a plane mirror in the situation as shown in figure. The plane of motion of the particle is perpendicular to the plane of mirror. Then the motion of image of particle with respected to the particle is
A particle is moving in a circle in front of a plane mirror in the situation as shown in figure. The plane of motion of the particle is perpendicular to the plane of mirror. Then the motion of image of particle with respected to the particle is
physics-General
physics-
A plane mirror ' M ' and a concave mirror ' X ' are kept at a separation of 40 an with their reflecting faces facing each other as shown in figure. An object AB is kept perpendicular to the principal axis in position (1). Considering successive reflections first at mirror ' X ' and then at ' M', a real image is formed in front of 'M at a normal distance 8 am form it. If the object is moved to new position (2), the real image is formed at 20 cm from ' M ' with the reflections as described earlier.
Keeping the object in position (1), if the plane mirror is replaced with a convex mirror ' Y ' of focal length 20 m facing the mirror ' X ' after successive reflections first at ' X ' and then at ' Y ', the final image will be
A plane mirror ' M ' and a concave mirror ' X ' are kept at a separation of 40 an with their reflecting faces facing each other as shown in figure. An object AB is kept perpendicular to the principal axis in position (1). Considering successive reflections first at mirror ' X ' and then at ' M', a real image is formed in front of 'M at a normal distance 8 am form it. If the object is moved to new position (2), the real image is formed at 20 cm from ' M ' with the reflections as described earlier.
Keeping the object in position (1), if the plane mirror is replaced with a convex mirror ' Y ' of focal length 20 m facing the mirror ' X ' after successive reflections first at ' X ' and then at ' Y ', the final image will be
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physics-
In the figure shown consider the first reflection at the plane mirror and second at the convex mirror. AB is object.
In the figure shown consider the first reflection at the plane mirror and second at the convex mirror. AB is object.
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physics-
A flat mirror M is arranged parallel to a wall Wat a distance 1 from it. The light produced by a point source S kept on the wall is reflected by the mirror and produces a light spot on the wall. The mirror moves with velocity towards the wall.
A flat mirror M is arranged parallel to a wall Wat a distance 1 from it. The light produced by a point source S kept on the wall is reflected by the mirror and produces a light spot on the wall. The mirror moves with velocity towards the wall.
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physics-
Figure shows a torch producing a straight light beam falling on a plane mirror at an angle 60°. The reflected beam makes a spot P on the screen along y-axis. If at t=0, the mirror starts rotating about the hinge A with an angular velocity 
per second clockwise, find the speed of the spot on screen after time t=15 s.
Figure shows a torch producing a straight light beam falling on a plane mirror at an angle 60°. The reflected beam makes a spot P on the screen along y-axis. If at t=0, the mirror starts rotating about the hinge A with an angular velocity per second clockwise, find the speed of the spot on screen after time t=15 s.
physics-General
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A ray of light travels from a light source S to an observer after reflection from a plane mirror. If the source rotates in the clockwise direction by 10°, by what angle and in what direction the mirror should be rotated so that the light ray still strikes the deserver?
A ray of light travels from a light source S to an observer after reflection from a plane mirror. If the source rotates in the clockwise direction by 10°, by what angle and in what direction the mirror should be rotated so that the light ray still strikes the deserver?
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physics-
Two mirrors are inclined at an angle 
as shown in the figure. Light ray is incident parallel to one of the mirrors. The ray will start retracting its path after third reflection if:
Two mirrors are inclined at an angle as shown in the figure. Light ray is incident parallel to one of the mirrors. The ray will start retracting its path after third reflection if:
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physics-
Two plane mirror AB and AC are inclined at an angle 
. A ray of light starting from point P is incident at point Q on the mirror AB, then at R on mirror AC and again at S on AB, finally the ray ST goes parallel to the mirror AC. The angle i which the ray makes with the normal at point Q on mirror AB is
Two plane mirror AB and AC are inclined at an angle . A ray of light starting from point P is incident at point Q on the mirror AB, then at R on mirror AC and again at S on AB, finally the ray ST goes parallel to the mirror AC. The angle i which the ray makes with the normal at point Q on mirror AB is
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physics-
In the figure, the angle between two reflected rays is
In the figure, the angle between two reflected rays is
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physics-
A ray of light is to travel from point A to point B in figure in the shortest possible time after reflecting from P. Find 
.
A ray of light is to travel from point A to point B in figure in the shortest possible time after reflecting from P. Find .
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physics-
Three identical plane mirrors AB, BC, AC are arranged as shown in the figure. Find the total number of images of a point object ' S ' formed by the three mirrors. ( S is at the centre of the system)
Three identical plane mirrors AB, BC, AC are arranged as shown in the figure. Find the total number of images of a point object ' S ' formed by the three mirrors. ( S is at the centre of the system)
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