Advertisements
Advertisements
प्रश्न
The diagram in fig. shows an incident ray AO and the normal ON on a plane mirror. Draw the reflected ray. State the law you use to draw the direction of the reflected ray.

Advertisements
उत्तर

Law of reflection of light is used to draw the direction of the reflected ray.
This law states that angle of incidence is equal to the angle of reflection.
∠i = ∠r
APPEARS IN
संबंधित प्रश्न
Fill in the blank
A ________ image cannot be obtained on a screen.
Draw a diagram to show the reflection of a light ray incident normally on a plane mirror.
Explain the following term :
Plane mirror
Draw diagram/diagrams to show them.
Two plane mirrors are placed making an angle θ° in between them. For an object placed in between the mirrors, if angle is gradually increased from 0° to 180°, how will the number of images change : increase, decrease or remain unchanged?
Two plane mirrors are placed making an angle 60° in between them. For an object placed in between the mirrors, the number of images formed will be :
Prove geometrically that when plane mirror turns through a certain angle, the reflected ray turns through twice the angle.
(a) What do you understand by the term lateral inversion?
(b) A printed card has letters PHYSICS. By drawing the diagram show the appearance of the letters. (No ray diagram is required).
Calculate the number of images formed in two plane mirrors, when they are held at the angle of (i) 72° (ii) 36°.
What should be the minimum size of a plane mirror, so that a person 182 cm high can see himself completely?
Identify the following kind of beam of light.

