NEET Physics Waves Velocity Of Sound MCQs

Two identical plain wires have a fundamental frequency of $600$ cycle per second when kept under the same tension. What fractional increase in the tension of one wires will lead to the occurrence of $6$ beats per second when both wires vibrate simultaneously

Two waves are approaching each other with a velocity of $16\,\,m/s$ and frequency $n$. The distance between two consecutive nodes is

It takes $2.0{\rm{ }}s$ for a sound wave to travel between two fixed points when the day temperature is $10^\circ C$. if the temperature rises to $30^\circ C$ the sound wave travels between the same fixed parts in

From a point source, if amplitude of waves at a distance $r$ is A, its amplitude at a distance $2r$ will be

A tuning fork vibrating with a sonometer having $20\,\,cm$ wire produces $5$ beats per second. The beat frequency does not change if the length of the wire is changed to $21\,\,cm$. The frequency of the tuning fork (in Hertz) must be

The fundamental frequency of a sonometre wire is $n$. If its radius is doubled and its tension becomes half, the material of the wire remains same, the new fundamental frequency will be

The fundamental frequency of a sonometre wire is $n$. If its radius is doubled and its tension becomes half, the material of the wire remains same, the new fundamental frequency will be

If the pressure amplitude in a sound wave is tripled, then the intensity of sound is increased by a factor of

If the pressure amplitude in a sound wave is tripled, then the intensity of sound is increased by a factor of

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be