BY VIBRATING BODY

Consider the following sound waves marked A,B, C and D: (a) Which two waves represent sounds of the same loudness but different pitch? (b) Which two waves represent sounds of the same frequency but different loudness? (c) State whether all these sound waves have been produced by the same vibrating body or different vibrating bodies? (d) Which vibrating body/bodies could have generated the sound waves shown here?

Read the given statement(s) and conclusions carefully and select which of the conclusions logically follow(s) from the 8 statement(s). Statement: Sound is produced when something vibrates. The vibrating body causes rhe medium around it to vibrate. Conclusions: I. By medium, they mean only Air II. Sound is produced by vibration

The time taken by a vibrating body to move from one extreme position to the other extreme position is 0.1 s. If the distance between adjacent crests is 2 m, write the steps to determine the wave velocity in proper sequence (a) Determine the frequency of the wave (f) (b) Note down the wavelength (lamda) (c) Note down the time period (T) Determine the velocity of the wave as v = f lamda

[" In resonance,"],[" (A) the energy released by the vibrating "],[" body is maximum."],[" (B) energy absorbed by the vibrating body is "],[" maximum."],[" (C) neither energy is absorbed by the "],[" vibrating body nor energy is released."],[" (D) energy form does not evolve."]