Two Beams of Coherent Light Travel Different Paths Arriving at Point

question 44

Multiple Choice

Two beams of coherent light travel different paths arriving at point P. If the maximum destructive interference is to occur at point P, what should be the phase difference between the two waves?

• A) The phase difference between the two waves is π/4.
• B) The phase difference between the two waves is π/2.
• C) The phase difference between the two waves is π.
• D) The phase difference between the two waves is 2π.
• E) The two waves are in phase.

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Definitions:

Salvage Value

The estimated resale value of an asset at the end of its useful life, considered in depreciation calculations and asset disposal decisions.

Net Present Value

The sum of all future cash flows, both incoming and outgoing, of an investment, discounted back to their present value to analyze its profitability.

Investment Project

A project involving the allocation of capital resources to long-term assets that produce returns over time.

Working Capital

A measure of a firm's short-term financial health and its ability to cover its short-term obligations with its short-term assets.