What is melde apparatus?

The Melde’s Apparatus is a simple way to introduce students to the concept of standing waves. The apparatus consists of a string and an oscillator to generate different frequencies. Melde’s experiment is ideal to study the behaviour of standing waves.

What type of waves are produced in melde’s experiment?

In the experiment, mechanical waves traveled in opposite directions form immobile points, called nodes. These waves were called standing waves by Melde since the position of the nodes and loops (points where the cord vibrated) stayed static.

What is the use of melde’s experiment?

Melde’s experiment is ideal to study the behavior of standing waves. Students can even visually determine wavelength, period and amplitude of waves. A string undergoing transverse vibration illustrates many features common to all vibrating acoustic systems just like the vibrations of a violin or guitar string.

What are the main precautions of the melde’s experiment?

A. The thread should be uniform and inextensible.

B. Friction in pulley should be small. Otherwise it causes the tension to be less than the actual applied. tension.

C. The loops in central part of thread should be counted for measurement. The nodes at pulley and tip of. prong should be neglected as they have some motion.

What types of waves are produced in a vibrating tuning fork?

We know that in a transverse wave, the particles of the medium move perpendicular to the direction of propagation of the wave. Therefore, the wave produced in the stem of the tuning fork is the transverse wave.

How are nodes and antinodes formed?

The nodes are points of no displacement caused by the destructive interference of the two waves. The antinodes result from the constructive interference of the two waves and thus undergo maximum displacement from the rest position.

What is the working principle of the electrical tuning fork used in the experiment?

Essentially, the apparatus functions by attaching a battery across one of the fork prongs. The current thus produced, causes the electromagnet to do work on the prong when it is moving away. The circuit is broken when the prong is moving back towards the magnet so that this advantage is not lost.

What is the nature of waves produced in a tuning fork?

Sound Waves When an object vibrates (like a tuning fork) it sets up tiny waves of pressure in the air we detect as sound. Sound waves are called compression waves (or longitudinal waves) because the air gets compressed by the vibrating object and that compression is in the same direction as the wave travels.

What type of waves are produced in a vibrating tuning fork and how do you hear sound from it?

Sound waves are produced by vibrating objects. Whether it be the sound of a person’s voice, the sound of a piano, the sound of a trombone or the sound of a physics book slamming to the floor, the source of the sound is always a vibrating object.