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
Draw a diagram to show the reflection of a light ray incident normally on a plane mirror.
The image formed by a plane mirror is :
An insect is sitting in front of a plane mirror at a distance 1 m from it.
(b) What is the distance between the insect and its image?
How many images are formed for a point object kept in between two plane mirrors at right angles to each other? Show them by drawing a ray diagram.
An object is placed (i) asymmetrically (ii) symmetrically, between two plane mirrors inclined at an angle of 50°. Find the number of images formed.
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 must be the minimum length of a plane mirror in which a person can see himself full length? Draw a diagram to justify your answer. Does the distance of a person from the mirror affect the above answer?
