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The electric potential at a point in

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1 answer:

Rudik [331]3 years ago

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Answer:

11.3975

Explanation:

Accellus said so

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Explanation:

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For destructive interference

Path difference

$d=\dfrac{\lambda}{2}\\\Rightarrow \lambda=2d\\\Rightarrow \lambda=2\times 120\\\Rightarrow \lambda=240\ m$

The longest wavelength is 240 m

For constructive interference

$d=\lambda\\\Rightarrow 120\ m=\lambda$

The longest wavelength is 120 m

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