Question

Fill in the blanks

(a) The time period of a wave is 2 s. Its frequency is.............

(b) The pitch of a stringed instrument is increased by................... tension in string.

(c) The pitch of a flute is decreased by.................length of air column.

(d) Smaller the membrane,............... is the pitch.

(e) If a drum is beaten hard, its loudness..............

(f) A tuning fork produces sound of................frequency.

Answer 1

(a) The time period of a wave is 2 s. Its frequency is 0.5 S^-1.

(b) The pitch of a stringed instrument is increased by increasing tension in string.

(c) The pitch of a flute is decreased by increasing length of air column.

(d) Smaller the membrane, higher is the pitch.

(e) If a drum is beaten hard, its loudness increases.

(f) A tuning fork produces sound of single frequency.