Beats are produced with the help of two sound waves of amplitudes 3 and 5 units. The ratio of maximum to minimum intensity in the beats is
Two waves of lengths 50 cm and 51 cm produced 12 beats per second. The velocity of sound is
Two waves y=0.25sin 316 t and y=0.25sin 310 t are travelling in same direction. The number of beats produced per second will be
The couple of tuning forks produces 2 beats in the time interval of 0.4 seconds. So the beat frequency is
An unknown frequency x produces 8 beats per seconds with a frequency of 250 Hz and 12 beats with 270 Hz source, then x is
The wavelengths of two waves are 50 and 51 cm respectively. If the temperature of the room is 20oC, then what will be the number of beats produced per second by these waves, when the speed of sound at 0oC is 332 m/sec
Maximum number of beats frequency heard by a human being is
Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
On sounding tuning fork A with another tuning fork B of frequency 384 Hz, 6 beats are produced per second. After loading the prongs of A with some wax and then sounding it again with B, 4 beats are produced per second. What is the frequency of the tuning fork A
It is possible to hear beats from the two vibrating sources of frequency
A tuning fork gives 4 beats with 50 cm length of a sonometer wire. If the length of the wire is shortened by 1 cm, the number of beats is still the same. The frequency of the fork is
Two sound waves of wavelengths 5m and 6m formed 30 beats in 3 seconds. The velocity of sound is
The wavelength of a particle is 99 cm and that of other is 100 cm. Speed of sound is 396 m/s. The number of beats heard is
A tuning fork arrangement (pair) produces 4 beats/sec with one fork of frequency 288 cps. A little wax is placed on the unknown fork and it then produces 2 beats/sec. The frequency of the unknown fork is
A tuning fork vibrates with 2 beats in 0.04 second. The frequency of the fork is
Two sound sources when sounded simultaneously produce four beats in 0.25 second. the difference in their frequencies must be
A tuning fork of known frequency 256 Hz makes 5 beats per second with the vibrating string of a piano. The beat frequency decreases to 2 beats per second when the tension in the piano string is slightly increased. The frequency of the piano string before increasing the tension was
When temperature increases, the frequency of a tuning fork
Two strings X and Y of a sitar produce a beat frequency 4 Hz. When the tension of the string Y is slightly increased the beat frequency is found to be 2 Hz. If the frequency of X is 300 Hz, then the original frequency of Y was
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 per second are produced. Then the frequency of the tuning fork 'A' (in Hz) is
When a tuning fork vibrates, the waves produced in the fork are
When a tuning fork produces sound waves in air, which one of the following is same in the material of tuning fork as well as in air
The disc of a siren containing 60 holes rotates at a constant speed of 360 rpm. The emitted sound is in unison with a tuning fork of frequency
A sound source of frequency 170 Hz is placed near a wall. A man walking from a source towards the wall finds that there is a periodic rise and fall of sound intensity. If the speed of sound in air is 340 m/s the distance (in metres) separating the two adjacent positions of minimum intensity is
The distance between the nearest node and antinode in a stationary wave is
