Waves Test - 54...

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 wavelengths of two waves are 50 and 51 cm respectively. If the temperature of the room is 20°C, then what will be the number of beats produced per second by these waves, when the speed of sound at 0°C is 332 m/sec?

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

It is possible to hear beats from the two vibrating sources of frequency

The wavelength of a wave 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

When temperature increases, the frequency of a tuning fork

Two sources produce sound waves of equal amplitudes and travelling along the same direction producing 18 beats in 3 seconds. If one source has a frequency of 341 Hz, the frequency of the other source may be

The distance between the nearest node and antinode in a stationary wave is

In stationary wave