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Easy
Question
An infinitely long rod lies along the axis of a concave mirror of focal length f. The near end of the rod is at a distance u > f from the mirror. Its image will have a length
The correct answer is:
Related Questions to study
physics-
In the figure shown, the image of a real object is formed at point I. AB is the principal axis of the mirror. The mirror must be :
In the figure shown, the image of a real object is formed at point I. AB is the principal axis of the mirror. The mirror must be :
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physics-
A convex mirror of focal length ‘f’ is placed at the origin with its reflecting surface towards the negative x-axis. Choose the correct graphs between ‘v’ and ‘u’ for u < 0
A convex mirror of focal length ‘f’ is placed at the origin with its reflecting surface towards the negative x-axis. Choose the correct graphs between ‘v’ and ‘u’ for u < 0
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physics-
Two mirrors AB and CD are arranged along two parallel lines. The maximum number of images of object O that can be seen by any observer is
Two mirrors AB and CD are arranged along two parallel lines. The maximum number of images of object O that can be seen by any observer is
physics-General
physics-
Two mirrors, labeled LM for left mirror and RM for right mirror in the adjacent figure, are parallel to each other and 3.0 m apart. A person standing 1.0 m from the right mirror (RM) looks into this mirror and sees a series of images. How far from the person is the second closest image seen in the right mirror (RM)?
Two mirrors, labeled LM for left mirror and RM for right mirror in the adjacent figure, are parallel to each other and 3.0 m apart. A person standing 1.0 m from the right mirror (RM) looks into this mirror and sees a series of images. How far from the person is the second closest image seen in the right mirror (RM)?
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physics-
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?
physics-General
physics-
In the diagram shown, all the velocities are given with respect to earth. What is the relative velocity of the image in mirror (1) with respect to the image in the mirror (2)? The mirror (1) forms an angle b with the vertical
In the diagram shown, all the velocities are given with respect to earth. What is the relative velocity of the image in mirror (1) with respect to the image in the mirror (2)? The mirror (1) forms an angle b with the vertical
physics-General
physics-
A two eyed man is looking at the junction of two large 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 large mutually perpendicular mirrors from a far off distance. Assume no reflection to occur from the edge. Then if both the eyes are open
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physics-
As shown in the figure a particle is placed at O in front of a plane mirror M. A man at P can move along path PY and PY' then which of the following is true
As shown in the figure a particle is placed at O in front of a plane mirror M. A man at P can move along path PY and PY' then which of the following is true
physics-General
physics-
Two blocks each of mass m lie on a smooth table. They are attached to two other masses as shown in the figure. The pulleys and strings are light. An object O is kept at rest on the table. The sides AB & CD of the two blocks are made reflecting. The acceleration of two images formed in those two reflecting surfaces w.r.t. each other is:
Two blocks each of mass m lie on a smooth table. They are attached to two other masses as shown in the figure. The pulleys and strings are light. An object O is kept at rest on the table. The sides AB & CD of the two blocks are made reflecting. The acceleration of two images formed in those two reflecting surfaces w.r.t. each other is:
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physics-
Two plane mirrors of length L are separated by distance L and a man M2 is standing at distance L from the connecting line of mirrors as shown in figure. A man M1 is walking is a straight line at distance 2 L parallel to mirrors at speed u, then man M2 at O will be able to see image of M1 for total time:
Two plane mirrors of length L are separated by distance L and a man M2 is standing at distance L from the connecting line of mirrors as shown in figure. A man M1 is walking is a straight line at distance 2 L parallel to mirrors at speed u, then man M2 at O will be able to see image of M1 for total time:
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physics-
Two plane mirror AB and AC are inclined at an angle 
= 20°. 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 on S on AB finally the ray ST goes parallel to mirror Ac. The angle 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 = 20°. 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 on S on AB finally the ray ST goes parallel to mirror Ac. The angle which the ray makes with the normal at point Q on mirror AB is
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physics-
Two plane mirrors are inclined at 70°. A ray incident on one mirror at angle after reflection falls on the second mirror and is reflected from there parallel to the first mirror, is :
Two plane mirrors are inclined at 70°. A ray incident on one mirror at angle after reflection falls on the second mirror and is reflected from there parallel to the first mirror, is :
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physics-
Two mirrors labelled L1 for left mirror and L2 for right mirror in the figure are parallel to each other and 3.0 m apart. A person standing 1.0 m from the right mirror (L2) looks into this mirror and sees a series of images. The second nearest image seen in the right mirror is situated at a distance :
Two mirrors labelled L1 for left mirror and L2 for right mirror in the figure are parallel to each other and 3.0 m apart. A person standing 1.0 m from the right mirror (L2) looks into this mirror and sees a series of images. The second nearest image seen in the right mirror is situated at a distance :
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physics-
A beam of light strikes one mirror of a right angle mirror assembly at an angle of incidence 45° as shown in the figure. The right angle mirror assembly is rotated such that the angle of incidence becomes 60°. Which of the following statement is correct about the emerging light beam
A beam of light strikes one mirror of a right angle mirror assembly at an angle of incidence 45° as shown in the figure. The right angle mirror assembly is rotated such that the angle of incidence becomes 60°. Which of the following statement is correct about the emerging light beam
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physics-
Potentiometer wire of length 1 m is connected in series with 490 
resistance and 2V battery. If 0.2 mV/cm is the potential gradient, then resistance of the potentiometer wire is :
Potentiometer wire of length 1 m is connected in series with 490 resistance and 2V battery. If 0.2 mV/cm is the potential gradient, then resistance of the potentiometer wire is :
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