Why we use air columns in musical instruments ?

A stretched string is used in musical instruments because

Which of the following phenomenon is used by the musicians to tune their musical instruments?

Dried fruit used in making a musical instrument is

The table below shows the results of a survey of 250 people who were asked whether they like to read and whether they play a musical instrument. According the the results, what is the probability that a randomly selected person who was surveyed likes to read, given that the person plays a musical instrument?

A sound is produced by plucking a string in a musical instrument, then

Why can't we see air ?

How can you understand pitch and frequency in relation to working of musical instruments.

The frequency of the sound emitted by a musical instrument is 512Hz. The instrument emits plane wave of amplitude 10^(-4)m . Calculate the energy flux, if the speed of sound in air in 332 m/s and the density of air is 1.29kg//m^3 .

(A) : UV rays are used for sterilizing surgical instruments in hospitals. (R) : IR rays are used for sterilizing surgical instruments in hospitals.

STATEMENT-1: An open organ pipe can be used as a musical instrument but not a closed organ pipe. STATEMENT-2: The fundamental frequency of an open orgna pipe is twice the fundamental frequency of a closed organ pipe of the same length.