Question

what are beats?. show that the beat frequency is equal
to the difference between the frequencies of the two
Sound notes giving rise to beats.​

Answer 1

The phenomenon of waxing and waning of sound due to interference of two sound waves of nearly equal frequencies are called beats. The number of beats produced per second is called beat frequency, which is equal to the difference in frequencies of two waves.

Answer 2

Beat frequency is defined as the number of beats produced per second.

• Beats are created when two waves of almost identical frequencies travelling in the same direction in a medium superimpose on each other.
• The volume of the resulting sound at a given location increases and falls in a regular pattern.

• The intensity of the resulting sound at a given location rises and falls in a predictable pattern over time. Sometimes the intensity reaches a maximum, and sometimes it reaches a low The pulsation induced by the conjunction of two waves of slightly different frequencies is referred to as a beat in physics.

• Beats are the rising and fading of sound caused by the interference of two sound waves of approximately identical frequencies.
• The beat frequency is always equal to the difference in frequency of the two notes that interfere to produce the beats.
• So if two sound waves with frequencies of 187 Hz and 185 Hz are played simultaneously, a beat frequency of 2 Hz will be detected here for these frequencies.