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  • The phase difference in reflected wave, when light wave goes under  reflection at the interface from air to glass is:   O

The phase difference in reflected wave, when light wave goes under  reflection at the interface from air to glass is: 

 

Option: 1

0


Option: 2

\frac{\pi }{4}


Option: 3

\pi


Option: 4

\frac{\pi}{2}


Answers (1)

best_answer
 

  Reflection of plane wave using Huygens principle -

-When a light is reflected from denser to rarer medium, there is no phase change in the light but when a light is reflected from rarer to denser medium, there is a phase change of π. So, here the air is rarer than glass and there is a phase change of π.

Hence, the correct answer is option 3.

Posted by

Ajit Kumar Dubey

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