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प्रश्न
Two mirrors A and B are placed at right angles to each other as shown in the following figure.
A ray of light incident on mirror A at an angle of 25° falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be
पर्याय
25°
50°
65°
115°
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उत्तर
65°
Explanation:
Both the mirrors are inclined to each other at 90°. This means that the normal of both the mirrors will also be perpendicular to each other. We know that the angle of incidence is equal to the angle of reflection. Hence, the angle made by a reflected ray with normal is 25°.
Hence, x + 25° = 90°
x = 65°
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संबंधित प्रश्न
Select the correct alternative
The angle of incidence on a plane mirror is 30°.The angle of reflection will be:
A ray of light falls normally on a plane mirror. What is the angle of incidence ?
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In the following diagram, measure and write the angle of incidence and draw the reflected ray.
Define the following term
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Define the following term
Normal
The angle between incident ray and reflected ray is 60°. What is the value of angle of incidence?
The distance between the object and its image formed by a plane mirror appears to be 24 cm. What is the distance between the mirror and the object?
Draw figure showing the position of the plane mirror. Also, label the angle of incidence and angle of reflection on it.
Assertion (A): A ray incident along normal to the mirror retraces its path.
Reason (R): In reflection, the angle of incidence is always equal to the angle of reflection.
