Light Very Short Answer

39 cards   |   Total Attempts: 182
  

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What is meant by incident ray
The ray of light which falls on the mirror surface is called incident ray
What is meant by reflected ray
The ray of light which is sent back by the mirror is called reflected ray
How many reflected rays can there be for a given single incident ray falling on a plane mirror
Only one
What do you understant by point of incidence
The point at which the incident ray strikes the mirror is called the point of incidence
What is normal in the reflection of light from a plane mirror
The normal is aline drawn at right angles to the mirror surface at the point of incidence
Define angle of incidence
The angle between incident ray and normal is called the angle of incidence
Define angle of reflection
The angle between the reflected ray and normal is called the angle of reflection
A ray of light is incident on a plane mirror at an angle of 30 degree.what is the angle of reflection
30 degree
An incident ray make an angle of 75 degree with the surface of plane mirror what will be the angle of reflection
75 degree
A ray of light is incident normally on a plane mirror.where will this ray of light go after reflection from the mirror
The ray of light is reflected back along the same path
What is the angle of reflection when ray of light is incident normally on a plane mirror
Angle of reflection is zero
What is the angle of incident of a ray if the reflected ray is at 90 degree to the incident ray
It is 45 degree
Name the apparatus which is used to obtain a thin beam of light
Ray box
What type of reflection of light takes place from:

a. a rough surface
b. a smooth surface
A. diffuse reflection takes place from rough surface

b. regular reflection takes place from smooth surface
Which type of reflection of light a) ,regular reflection or b) diffuse reflection leads to the formation of images
A. it produces clear image of an object

b. no image is formed