List of top Physics Questions on Waves asked in CET Delhi Polytechnic

Which of the following waves do not require any kind of medium to propagate ?
The human audible range of sound is from 20 Hz to ____ :
Ultrasonic wave is a :
A sound wave has a frequency of 2 KHz and wavelength 35 cm. The time taken by it to travel a distance of 7 km will be :
Speed of sound in sea water at \(25^\circ\text{C}\) is :