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The power radiated from a linear antenna of length l is proportional to (Given, λ = Wavelength of wave) :

1. λ l
2. 2 ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ λ l
3. 2 λ l
4. λ 2 l

Correct answer: 2 ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ λ l

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