Draw labelled diagrams to represent (a) soft sound, and (b) loud sound, of the same frequency.

What is a soundboard? Explain the working of a soundboard with the help of a labelled diagram.

What is meant by the ‘loudness’ of sound? On what factor does the loudness of a soind depend?

Explain the term ‘pitch’ of a sound. On what factor does the ‘pitch’ of a sound depend?

Draw labelled diagrams to represent sound of (a) low pitch, and (b) high pitch, of the same loudness.