English, asked by laxmigbamrara123, 5 hours ago

write hermit's principles ?ch- three questions.
plz give answer its very urgent.

Answers

Answered by gursharanjali
0

Answer:

Fermat's principle, also known as the principle of least time, is the link between ray optics and ... (3) These delayed versions of the disturbance will reinforce each other at B if they are ... 

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