Question

In the musical instrument jal-tarang, the bowls contain different amounts of water.
a) Which of the bowls produce a low pitch sound?
b) Which of the bowls produce a high pitch sound?

Answer 1

Hint: Jal tarang is an ancient musical instrument that produces music. This instrument produces sound due to a gentle tap on the bowls of the instrument that contains different levels of water. Due to the different level of water, it produces sound. This instrument is used in Indian classical music.

Complete solution:
The word jal tarang means waves in water. Jal tarang works on the motion of the sound waves that are created when the water in the cups of the instrument are disturbed. These vibrations travel through water. The sound is produced due to the presence of air in the bowels of the instrument.
a) The bowl which contains more amount of water, will produce less sound or a sound of low pitch. This is because due to a large amount of water in the bowl, its resonant frequency will be less.
b) The bowl which contains less amount of water, will produce a sound of high pitch. In a bowl having less amount of water, it will have a more resonant frequency.

Note: It is important to remember that the quality of sound waves changes as the frequency of the waves changes. The cups in the instrument are filled with different levels of water up to different heights. These vibrations of water result in the different frequencies. Due to this reason, they produce different types of sounds. The resonant frequency is the maximum frequency of a system at which the system reaches a maximum degree of oscillation.