Physics · Electromagnetic Theory

The phase difference between two small oscillating electric dipoles, separated by a distance d, is π. If the wavelength of the radiation is λ, the condition for constructive interference between the two dipolar radiations at a point P when r >> d (where n is an integer) is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1d cos θ = (n + 1 2 )λ
2d cos θ = nλ
3d sin θ = nλ
4d sin θ = (n + 1 2 )λ✓

Correct answer

d sin θ = (n + 1 2 )λ

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The phase difference between two small oscillating electric dipoles, separated by a distance d, is π. If the wavelength of the radiation is λ, the condition for constructive interference between the two dipolar radiations at a point P when r >> d (where n is an integer) is:

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The phase difference between two small oscillating electric dipoles, separated by a distance d, is &pi;. If the wavelength of the radiation is &lambda;, the condition for constructive interference between the two dipolar radiations at a point P when r >> d (where n is an integer) is:

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The phase difference between two small oscillating electric dipoles, separated by a distance d, is π. If the wavelength of the radiation is λ, the condition for constructive interference between the two dipolar radiations at a point P when r >> d (where n is an integer) is: