Question

Please..... help me​

Answer 1

Answer:

It is given that,

Io=K

As we know that,

I=Io.cos²∅/2

And,∆∅=2π/lambda×∆x

Where,∆∅=phase difference

∆x=path difference

∆∅=2π/lambda×lambda/3

∆∅=2π/3

Substitute the phase difference in the above equation,

I=Io.cos²∅/2

I=Io.Cos²2π/3×2

I=K.Cos²π/3

I=K/4

Explanation:

Hope it helps you......

Answer 2

Answer:

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