Physics, asked by sagar2120, 1 year ago

why do secondary Maxima get weaker in intensity with increasing n ?

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Answered by Alhamdh
9
Why does intensity decrease as we move away from central maxima in diffraction?
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Mahesh Shenoy
Mahesh Shenoy, Physix Teacher, FloatHeadPhysix - Youtube
Answered Jan 11 2015 · Author has 784 answers and 917.1k answer views
At the center all the huygen sources from the slit opening interfere constructively and give you the maxima.

But as you move away from the center, and move towards the first order maxima, some huygen sources kill each other, and the remaining construct to give light. So it wouldn't be as bright

Also if you go further out, the intensity becomes even smaller..
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