Advertisements
Advertisements
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
विकल्प
25°
50°
65°
115°
Advertisements
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°
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
The image formed by a plane mirror is upright.
Fill in the blank
Angle of incidence = ___________
Select the correct alternative
The angle of incidence on a plane mirror is 30°.The angle of reflection will be:
Explain the following terms:
Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.
In the following diagram, measure and write the angle of incidence and draw the reflected ray.
The following diagram shows an incident ray AO and the normal ON on a plane mirror. Find the angle of incidence and angle of reflection.
We can see a non-luminous object when the light
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?
Diffused reflection gives a sharp image.
A ray of light fall on a plane surface at an angle of incidence of 9° and reflection occurs. Calculate the angle of reflection in degree.
