With reference to sound waves, consider the following statements: 1. Sound waves do not need any medium and can travel in vacuum also. 2. Sound waves are longitudinal waves. 3. In sound wave propagation, the particles do not move from one place to another, but they simply oscillate back and forth about their position of rest. Which of the statements given above is/are correct?

Consider the following statements regarding waves: 1. If the particles of a medium move along the direction of motion of the wave, the wave is called a longitudinal wave. 2. If the particles of a med…

Consider the following statements about the microphone and the speaker of a mobile phone : 1. The microphone converts sound to a mechanical signal. 2. The microphone converts sound to an electrical s…

Which one of the following statements about the speed of sound waves is not correct?

Which of the following statements is NOT correct regarding the travel of sound waves?

Which one of the following statements is true for sound waves propagating in air?