Waves & Sound Experiment Apparatus

Question 1

Signal Generator

Answer 1

A power supply unit which generates alternative voltages. Both the amplitude and frequency can be varied. It can generate some wave, square or even triangular wave signals.

Question 2

Loudspeaker + signal generator

Answer 2

Acts a source of sound. The loudness of sound can be varied by varying the amplitude of the alternating voltage.

Question 3

Tuning forks of different frequencies

Answer 3

Each tuning fork is able to generate a particular frequency of sound.

Question 4

Microphone

Answer 4

Converts sound waves into electrical signal which is then fed to the CRO

Question 5

Mechanical wave driver (equivalent to a vibrator)

Answer 5

Produced vertical vibrations when connected to a signal generator. (Recall demonstration of stationary waves in stretched strings, Topic 11, Superposition)

Question 6

Microwave transmitter and recover

Answer 6

The transmitter generates the microwaves; the receiver detects the microwaves.

Question 7

Ripple tank

Answer 7

Used to study wave phenomena like interface, diffraction using water waves.