Chapter 17 – Sound Waves

Two wires are fixed in a sonometer. Their tension are in the ratio 8:1 The lengths are in the ratio 36:35 The diameter are in the ratio 4:1 Densities of the materials are in the ratio 1:2 if the lower frequency in the setting is 360Hz. The beat frequency when the two wires are sounded [...]

Each of the two strings of length 51.6cm and 49.1cm are tensioned separately by 20 N force. Mass per unit length of both the strings is same and equal to 1g/m. When both the strings vibrate simultaneously, the number of beats is 5 beats/sec are produced The frequency of tuning forks A and B are [...]

The frequency of tuning forks A and B are respectively 3% more and 2% less than the frequency of tuning fork C, when A and B are simultaneously excited, 5 beats/sec are produced, then the frequency of the tuning fork A(in Hz) is 5 beats/sec are produced The frequency of tuning forks A and B [...]

Two tuning forks A and B vibrating simultaneously produce 5 beats/s. Frequency of B is 512Hz. If one arm of A is filed, the number of beats per second increases. Frequency of A is the number of beats per second increases. Frequency of A is Two tuning forks A and B vibrating simultaneously produce 5 [...]

When a tuning fork A of frequency 100 Hz is sounded with a tuning fork B, the number of beats per second is 2. On putting some wax on the prongs of B, the number of beats per second becomes 1. The frequency of the fork B is the number of beats per second becomes [...]

A tuning fork whose frequency as given by manufacturer is 512 Hz is being tested with an accurate oscillator it is found that the fork produces a 2 beat per sound when oscillator reads 514 Hz and 6 beat per sound when it reads 510 Hz. The actual frequency of fork is A thin plane [...]

Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together. The time interval, between two consecutive maxima heard by an observer is between two consecutive maxima heard by an observer is Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together. The time interval September 15, 2020 Category: Cengage [...]

Two sources of sound are placed along the diameter of a circle of radius R(R>>41). How many minima will be heard as one moves along the perimeter of circle. Two sources of sound are placed along the diameter of a circle of radius R(R>>41). How many minima will be heard as one moves along the [...]

Vibrating tuning fork of frequency n is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through 8.75 cm, the intensity of sound changes from a maximum to minimum. If the speed of sound is [...]

Two loudspeakers L1​ and L2​ driven by a common oscillator and amplifier, are arranged as shown. The frequency of the oscillator is gradually increased from zero and the detector at D records a series of maxima and minima. If the speed of sound is 330 ms^−1 then the frequency at which the first maximum is [...]