Physics, asked by rishikasahu2007, 4 days ago

Why is the angle of emergence equal to angle of incidence in given figure? Prove it mathematically .

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Answered by 1140063
1

Answer:

If the angle of incidence and angle of emergence of a light ray falling on a glass slab are given then by applying Snell’s law we can get,

sinr

sini

=  

n  

1

 

n  

2

 

 

sine

sinr

=  

n  

2

 

n  

1

 

 

On multiplying the above two equation we get

sine

sini

=1

sini=sine

Hence the angle of incidence is equal to the angle of emergence

Explanation:

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