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प्रश्न
Parallel rays are incident:
- on regular surface and
- on irregular surface. In what respect do reflected rays in (1) differ from those of (2)?
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उत्तर
Parallel rays of light after reflection from a regular surface. goes in a particular direction while after reflection from irregular surface go in different directions.
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संबंधित प्रश्न
Select the correct alternative
The angle between the incident ray and the ray reflected from the plane mirror is 70°. The angle of incidence will be :
Explain the following term :
Plane mirror
Draw diagram/diagrams to show them.
Why is it difficult to read the image of the text of a page formed due to reflection by a plane mirror?
Two plane mirrors are placed making an angle θ in between them. Write an expression for the number of images formed of an object placed in between the mirrors. State the condition, if any.
State two uses of a plane mirror.
A ray of light strikes a plane mirror, such that the angle with the mirror is 20°. What is the value of angle of reflection? What is the angle between the incident ray and the reflected ray?
Prove experimentally that images are formed as far behind in a plane mirror as the object is in front of it.
(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°.
