Maths-
General
Easy
Question
if 
find the value of x in given figure.
- 14°
- 24°
- 34°
- 44°
The correct answer is: 24°
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if find the value of ‘x’ in the given figure.
if find the value of ‘x’ in the given figure.
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In 
then find 
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In then find in the figure.
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The figure shows a ray incident at an angle 
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physics-General
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The refracting media are separated by a spherical interface as shown in the figure. PP' is the principal axis, 
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physics-General
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In the figure shown a point object 0 is placed in air on the principal axis. The radius of curvature of the spherical surface is 60 cm. If is the final image formed after all the refractions and reflections.
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physics-General
physics-
In the diagram shown, a ray of light is incident on the interface between 1 and 2 at angle slightly greater than critical angle. The light suffers total internal reflection at this interface. After that the light ray falls at the interface of 1 and 3, and again it suffers total internal reflection. Which of the following relations should hold true?
In the diagram shown, a ray of light is incident on the interface between 1 and 2 at angle slightly greater than critical angle. The light suffers total internal reflection at this interface. After that the light ray falls at the interface of 1 and 3, and again it suffers total internal reflection. Which of the following relations should hold true?
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A curved surface of radius 
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as shown in figures A and B
Identify the correct statement (s) related to the formation of images of a real object placed at x from the pole of the concave surface, as shown in figure B
A curved surface of radius separates two medium of refractive indices and as shown in figures A and B
Identify the correct statement (s) related to the formation of images of a real object placed at x from the pole of the concave surface, as shown in figure B
physics-General
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Three right angled prisms of refractive indices 
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physics-General
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In n similar thin prisms of same material and refractive index are arranged in series as shown :
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physics-General
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Figure shows the graph of angle of deviation 
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physics-General
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A vertical light ray strikes a plane mirror kept inclined at an angle of 45° to the horizontal. The reflected ray is horizontal as shown in fig. A glass prism with refracting angle 6° is placed in the path of the reflected ray. In what way and by how much should the mirror be rotated, if the total deviation of the light ray is to be 90° ?
A vertical light ray strikes a plane mirror kept inclined at an angle of 45° to the horizontal. The reflected ray is horizontal as shown in fig. A glass prism with refracting angle 6° is placed in the path of the reflected ray. In what way and by how much should the mirror be rotated, if the total deviation of the light ray is to be 90° ?
physics-General
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A fixed cylindrical tank of height H=4 m and area 
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A fixed cylindrical tank of height H=4 m and area , is filled up with a liquid. An observer through a telescope fitted at the top of the wall of the tank and inclined at with the vertical. When the tank is completely filled with liquid, he notices an insect, which is at the centre of the bottom of the tank. At t=0, he opens a cork of area a at the bottom of the tank. The insect moves in such a way that it is visible for a certain time. Find the refractive indexof the liquid
physics-General
