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General
Easy
Question
The figure shows the path of a ray of light as it passes through three different materials with refractive indices n1, n2 and n3. The figure is drawn to scale. The refractive indices of the material satisfy relation
The correct answer is:
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Bottom face of the glass cube is silvered as shown. A ray of light incident on top face of the cube as shown. Find the deviation of the ray when it comes out of the glass cube :
Bottom face of the glass cube is silvered as shown. A ray of light incident on top face of the cube as shown. Find the deviation of the ray when it comes out of the glass cube :
physics-General
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In the figure shown the angle made by the light ray with the normal in the medium of refractive index 1 is :
In the figure shown the angle made by the light ray with the normal in the medium of refractive index 1 is :
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A ray R1 is incident on the plane surface of the glass slab (kept in air) of refractive index 
at angle of incident equal to the critical angle for this air glass system. The refracted ray R2 undergoes partial reflection & refraction at the other surface. The angle between reflected ray R3 and the refracted ray R4 at that surface is :
A ray R1 is incident on the plane surface of the glass slab (kept in air) of refractive index at angle of incident equal to the critical angle for this air glass system. The refracted ray R2 undergoes partial reflection & refraction at the other surface. The angle between reflected ray R3 and the refracted ray R4 at that surface is :
physics-General
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The distance of a real object from the focus of a convex mirror of radius of curvature 'a' is 'b'. Then the distance of the image from the focus is
The distance of a real object from the focus of a convex mirror of radius of curvature 'a' is 'b'. Then the distance of the image from the focus is
physics-General
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A straight line joining the object point and image point is always perpendicular to the mirror
A straight line joining the object point and image point is always perpendicular to the mirror
physics-General
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In the figure shown if the object ‘O’ moves towards the plane mirror, then the image I (which is formed after successive reflections from M1 & M2 respectively) will move:
In the figure shown if the object ‘O’ moves towards the plane mirror, then the image I (which is formed after successive reflections from M1 & M2 respectively) will move:
physics-General
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A reflecting surface is represented by the equation 
. A ray travelling horizontally becomes vertical after reflection. The coordinates of the point (s) where this ray is incident is
A reflecting surface is represented by the equation . A ray travelling horizontally becomes vertical after reflection. The coordinates of the point (s) where this ray is incident is
physics-General
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A ray of light is incident on a concave mirror. It is parallel to the principal axis and its height from principal axis is equal to the focal length of the mirror. The ratio of the distance of point B to the distance of the focus from the centre of curvature is (AB is the reflected ray)
A ray of light is incident on a concave mirror. It is parallel to the principal axis and its height from principal axis is equal to the focal length of the mirror. The ratio of the distance of point B to the distance of the focus from the centre of curvature is (AB is the reflected ray)
physics-General
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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
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
physics-General
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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 :
physics-General
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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
physics-General
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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)?
physics-General
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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?
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
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