# Two coherent waves, each with amplitude A, reach the same point in phase. The amplitude of the...

## Question:

Two coherent waves, each with amplitude {eq}\displaystyle A, {/eq} reach the same point in phase. The amplitude of the superposed wave is .................

{eq}\displaystyle a) 0 \\b) A \\c) 2A \\d) 3A \\e) 4A {/eq}

## Interference:

The interference of two waves is the result of the superposition of two waves. When two waves reach a point in phase, the amplitude, hence the intensity of the resultant of the waves, increases, and when they reach a point in opposite phases, the amplitude, hence the intensity of the results of the waves decreases. This phenomenon is known as the interference of waves.

## Answer and Explanation: 1

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**We are given**

- The amplitude of each of the two coherent sources: {eq}A {/eq}

**Answer**

When the two waves reach a point in phase, constructive...

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Chapter 5 / Lesson 16Interference occurs when two waves meet. Explore the lesson and examples to learn about the differences between constructive and destructive interference.

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