Laws of Refraction


 
 
Concept Explanation
 

Laws of Refraction

The way a ray of light refracts when it is incident on the surface separating two media depends not only on the refractive indices of the media but also on the angle of incidence.

In the given figure there are two mediums : Air and Water. Let their refractive indices be n _1 and n _2 respectively. The two media can be any pair such as air and water, or air and glass. Suppose a ray of light called as incident ray traveling in medium air,  is incident on the surface of water body . Draw a normal  to the surface at the point of incidence of incident ray.

The angle i formed between the incident ray and the normal is called the angle of incidence(angle i).

The angle r between the refracted ray and the normal is called the angle of refraction(angle r).

The ray of light inside the medium is called as refracted ray.

Laws Of Refraction:

Two laws of refraction governs the refraction that takes place at a surface of separation.

.... (More Text Available, Login?)
Sample Questions
(More Questions for each concept available in Login)
Question : 1

Which of the following are correct ?

(a) The angle formed between the incident ray and the normal is called the angle of incidence.

(b) The ray of light coming from medium 1 when it is inside the medium it 2 is called as refracted ray .

Right Option : C
View Explanation
Explanation
Question : 2

The angle of refraction is the angle that the __________makes with me _____

Right Option : D
View Explanation
Explanation
Question : 3

Which of the following are correct ?

(a) The way a ray of light refracts when it is incident on the surface separating two media depends not only on the refractive indices of the two media but also on the angle of incidence.

(b) The angle formed between the incident ray and the normal is called the angle of refraction.

(c) The ray of light coming from medium 1 when it is inside the medium it 2 is called as refracted ray .

Right Option : C
View Explanation
Explanation
 
Video Link - Have a look !!!
 
Language - Hindi/English
 
 
 
Related Videos
Language - Hindi/English
Language - Hindi/English
Language - Hindi/English

Language - Hindi/English
Language - Hindi/English


Students / Parents Reviews [10]