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How Does the Light Have to Enter the Glass: For No Refraction to Happen? - Science

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Question

How does the light have to enter the glass: 

 for no refraction to happen? 

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Solution

For no refraction, the light ray has to enter the glass perpendicularly.

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Chapter 5: Refraction of Light - Exercise 1 [Page 221]

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Lakhmir Singh Physics (Science) [English] Class 10
Chapter 5 Refraction of Light
Exercise 1 | Q 42.2 | Page 221

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