The document Speed of a Travelling Wave and Equation of Progressive Wave Class 11 Notes | EduRev is a part of the Class 11 Course Physics For JEE.

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**Speed of Transverse Motion**

On a stretched string v = √(T/m)

where, T = tension in the string and m = mass per unit length of the string.

Speed of transverse wave in a solid v = √(η/ρ)

where, η is modulus of rigidity and ρ is density of solid.

**Plane Progressive Simple Harmonic Wave**

Equation of a plane progressive simple harmonic wave

or

where,

- y = displacement,
- a = amplitude of vibration
- λ = wavelength of wave, of particle,
- T = time period of wave,
- x = distance of particle from the origin and
- u = velocity of wave.

**Important Relation Related to Equation of Progressive Wave**

where. ts culled propagation constant of wave motion.

Wavelength,

Time period.

Frequency,

Phase of the vibration is the angle of sine m equation, to plan progressive wave. It is denoted by φ.

**Relation between phase difference and path difference and time difference**

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