Light Passes Through a Pair of Very Thin Parallel Slits

question 49

Multiple Choice

Light passes through a pair of very thin parallel slits. The resulting interference pattern is viewed far from the slits at various angles θ relative to the centerline coming outward from the midpoint between the slits. The central bright fringe is at θ = 0°. If the central bright fringe has intensity I₀, what is the intensity of the next bright fringe on either side of it?

• A) I₀
• B) I_0/
• C) I₀/2
• D) I₀ cos 15°
• E) I₀ cos² 15°

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Definitions:

Acting as Barrier

A function or mechanism that prevents certain substances or signals from passing or being transmitted.

Secretion of Substances

The process by which substances are produced and released from a cell, gland, or organ for a particular function in the organism.

Connective Tissue

A type of tissue in the body that supports, protects, and gives structure to other tissues and organs.

Bind Other Tissues

Refers generally to the function of various connective tissues in the body that help stabilize and support the structures they surround.