Derive the expression for the intensity at a point where interference of light occurs. Arrive at the conditions for maximum and zero intensity?

Question

Vikas TU · Answer

Its simple! Just think of two waves having Electric fields as: E1 = E0sinwt and E2 = E0sin(wt + o) where o is phase sshift of o. The resulatant electric field would be E1 + E2. Use sinc + sind formulaes and u would obtain as: Enet = 2E0coso/2 * sin(wt + o/2) . Now u need to know taht: Intensity is always directly proprtion to square of electric field or amplitude. THus, I = Imaz * cos^2(o/2).

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Derive the expression for the intensity at a point where interference of light occurs. Arrive at the conditions for maximum and zero intensity?

Derive the expression for the intensity at a point where interference of light occurs. Arrive at the conditions for maximum and zero intensity?

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