Speed of a Transverse Pulse Propagated through a Stretched String

# Our Objective

To determine the speed of a transverse pulse propagated through a stretched string.

# The Theory

A pulse is small disturbance through medium lasts for short time.

Transverse pulse – Particles of medium moves perpendicular to the direction of motion of pulse.

We can observe pulse in long stretched string. The pulse reflects when it reaches fixed boundary.

## Method to measure the speed of the pulse

If a pulse travels through string, we can use equation

V=l/T

To find velocity of a pulse through string

l-length of string

T-Time period of pulse

Speed of pulse is different for different string length.  Speed of pulse may be different for same length.

Factors affecting speed of pulse

Speed of a pulse depends upon the tension and mass per unit length of the string

T-Tension on the string

μ-mass per unit length of the string.

# Learning Outcomes

• Students learn to demonstrate transverse pulse.
• Students understand how to find speed of wave.