Wave Speed

Introduction

Speed is defined as distance over time.
When it comes to waves, the distance is wavelength and the time is period.
Hence, wave speed = wavelegth / period

Since period is the inverse of frequency, the wave speed formula can be written as follows:
wave speed = frequency × wavelegth ⇒ v = f × λ

This formula holds for all kinds of waves including water waves, sound waves, light waves, etc.

Exercises

Exercise-4

Exercise-4 on Waves

Check your answers here:

 Solution to Exercise-4 on Waves



Exercise-5

Exercise-5 on Waves

Check your answers here:

 Solution to Exercise-5 on Waves



Exercise-6

Exercise-6 on Waves

Check your answers here:

 Solution to Exercise-6 on Waves





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