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प्रश्न
What is irregular reflection ? Give an example.
By giving one example and one use explain or define irregular reflection.
उत्तर १
Irregular reflection – When a beam of light falls on such a surface which is not perfectly smooth and polished such as wall, wood, paper etc. the different portions of the surface reflect light in different directions. Such a reflection of light in different directions. Such a reflection of light from an uneven surface is called the irregular or diffused reflection.
उत्तर २
Irregular reflection or Diffused reflection: The phenomenon due to which a parallel beam of light, traveling through some medium, gets reflected in various possible directions, on striking some rough surface is called irregular reflection.
For example: Reflection taking place from ground, walls, trees, suspended particles in the air is irregular reflection.
Use: It helps in the general illumination of places and helps us to see things around us.
संबंधित प्रश्न
Write true or false of the following statement.
The image formed by a plane mirror can be obtained on a screen.
Fill in the blank
The image formed by a plane mirror is at a distance behind the mirror as ________
Fill in the blank
A plane mirror _________ reflects 100 percent light falling on it.
Select the correct alternative
The image formed by a plane mirror is
What do you mean by the term reflection of light ?
A light ray is incident normally on a plane mirror. What is the direction of reflected ray? Show it on a diagram.
The diagram in Figure shows a point object P in front of a plane mirror MM1.
(a) Complete the diagram by taking two rays from the point P to show the formation of its image.
(b) In the diagram, mark the position of eye to see the image.
(c) Is the image formed real or virtual? Explain why?
A ray is incident on a plane mirror . Its reflected ray is perpandicular to the incident ray . Find the angle of incidence .
State four uses of a plane mirror.
Describe the principle of simple periscope through an outline ray diagram. Give one of its uses.
Out of the following, choose the substance which is translucent medium:
State whether the following statement is true or false. If false, correct it.
The image in a plane mirror is situated in the mirror.
Locate the image termed when the object is placed between two planes as shown in the following figure.
Locate the image termed when the object is placed between two planes as shown in the following figure.
An object that blocks all of the light from passing through is ______.
The image formed by a plane mirror is always as far behind the mirror as far the object lies in front of it.
Select the WRONG statement in case of image formed by a plane mirror.
