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fva65
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Homework Statement
How do you derive the following equation given I/Io= (I/N2)[(sinNØ/2)/(sinØ/2)]2
given that Ø= (2πdsinΘ)/λ
Homework Equations
Ø= (2πdsinΘ)/λ
d=λ/sinΘ
The Attempt at a Solution
I have tried substituting Ø into the equation as well as d=λ/sinΘ, but I always seem to make the equation equal to 1 or 0 and this really isn't what I'm looking for. Does this equation come from an amplitude equation using trig identities of some sort?