Two sound waves have wavelengths `85 / 170 m` an `85 /172 m` in air. Each wave produces `4 beats /second` with a third note of fixed frequency.Find the frequency of the third note.

Two sound waves of wavelength 85/133m and 85/137 m when sounded together produce 8 beats/s with a third note of fixed frequency , then the frequency of third note will be

Wave length of two notes in the air are [ 70/ 153] m and [70 / 157] m . Each of these notes produces 8 beats per second with a tuning fork of fixed frequency . Find the velocity of sound in the air and frequency of the tuning fork.

Two sound waves having wavelengths 81 cm and 82.5 cm produce 8 beats per second. Calculate the speed of sound in air.

As speed limit is 120 km/h but speed of the car is less than it so that policeman does not punishing the car driver. Two sound notes have wavelengths 83/ 170 m and 83/ 172 m in the air.These noteswhen sounded together produce 8 beats per second.Calculate the velocity of sound in the air and frequencies of the two notes.

Two sound waves having wavelengths of 87 cm and 88.5 cm respectively , when superimposed, produce 10 beats per second . Find the velocity of sound .

Two sound wave of wavelength 0.80 m and 0.81 m produce 8 beats per second in air. The frequency of the two waves are respectively:

The wavelengths of two sound waves in air are 81 /173 m and 81 /170 m . They produce 10 beats per second. Calculate the velocity of sound in air.

Solve the following example: A sound wave has wavelength 0.85 m in air and 0.9 m in a gas. The speed of sound in air is 340 m//s . Find the frequency of sound and the speed of sound in the gas.

Two waves of wavelengths 52.5 cm and 52 cm produces 5 beats per second.their frequencies are