Question

2) The observation made by Swarali while doing the experiment are given below.
Based on these write answer to the question
Swarali found that the light ray travelling from the denser medium to rarer medium
goes away from the normal. If the angle of incidence (i) is raised by Swarali, the
angle of refraction (r) went on increasing. However after certain value of the angle
of incidence the light ray is seen to return back into the denser medium.
Questions:
a) What is the specific value of Li called?
b) What is the process of reflection of incident ray into denser medium called?
c) Draw the diagram of three observations made by Swarali.​

Answer 1

Answer:

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Answer 2

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