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Ivan
1 year ago
5

what principle is responsible for alternating light and dark bands when light passes through two or more narrow slits?

Physics
1 answer:
olya-2409 [2.1K]1 year ago
7 0

The superposition principle is responsible for alternating light and dark bands when light passes through two or more narrow slits.

The intensity pattern that appears on the lit screen is determined by the superposition principle. When the difference in pathways from the two slits to a location on the screen equals an integral number of wavelengths (0,λ,2λ ,...), constructive interference takes place.

The fact that the two waves' crests follow different paths ensures that they do. A distinctive pattern of brilliant and dark fringes is seen when monochromatic light illuminates a distant screen after passing through two small openings. The superposition of overlapping light waves coming from the two slits results in this interference pattern.

Learn more about superposition principle here;

brainly.com/question/2699638

#SPJ4

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Explanation:

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F₁ = (- 25*Cos 50° i + 25*Sin 50° j + 0 k) N

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Then we have

F₁ + F₂ + F₃ + F₄ = 0

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⇒   F₄ = - ((- 25*Cos 50° i + 25*Sin 50° j) N + (12*Cos 50° i + 12*Sin 50° j) N + (4 k) N) = (13*Cos 50° i - 37*Sin 50° j - 4 k) N

The magnitude of the force will be

F₄ = √((13*Cos 50°)² + (- 37*Sin 50°)² + (- 4)²) N = 29.819 N

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