# Answer to Question #3634 in Electromagnetism for David

Question #3634

What's the difference between a scalar wave and a vector wave? <br>I believe an acoustic wave is a scalar wave and an electromagnetic wave is a vector wave.

Expert's answer

Vector wave depend on direction of wave and scalar - abs value of this vector.

k=2pi/L, where L- wavelength.

k=2pi/L, where L- wavelength.

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