If the waves are **coherent**, then the resultant intensity is given by

I = I1 + I2 + 2 √(I1 I2 Cos Θ), where Θ is the phase difference between two waves

Oct 10

If the waves are **coherent**, then the resultant intensity is given by

I = I1 + I2 + 2 √(I1 I2 Cos Θ), where Θ is the phase difference between two waves

**Permanent link to this article: **http://www.plustwophysics.com/coherent-and-incoherent-addition-of-waves/

Jul 18

**Shashank Asked:**

“How to solve

rain and man problemsfrom motion in one dimension?”

**Answer:**

The problem is solved using principles of **vector addition**.

There is a simple logic to remember

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**Permanent link to this article: **http://www.plustwophysics.com/rain-and-man-problems-how-to-solve/

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