Yall think aliens real? for me no, because people been trying to search for them through telescopes and stuff for years. but sti
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Answer:
Explanation:
From the question we are told that:
Distance of wall from CD
Second bright fringe
Let
Strontium vapor laser has a wavelength \lambda= 431 nm=>431 *10^{-9}m
Generally the equation for Interference is mathematically given by
Where