
What is meant by resonance? Describe a simple experiment to illustrate the phenomenon and explain it.

Important Questions on Sound



Fig, 7.13 shows tuning fork A and B of the same frequency mounted on separate sound boxes with their open ends facing each other. The fork is a set into vibration.
(a) Describe your observations.

Fig, 7.13 shows tuning fork A and B of the same frequency mounted on separate sound boxes with their open ends facing each other. The fork is a set into vibration.
(b) State the principle illustrated by this experiment.

In fig. 7.13, A, B, C and D four pendulums suspended from the same elastic string XY. Lengths of pendulums A and D are equal, while the length of pendulums B is shorter and of the pendulum C is longer. The pendulum A is set into Vibration.
(a) What is your observation?

In fig. 7.13, A, B, C and D four pendulums suspended from the same elastic string XY. Lengths of pendulums A and D are equal, while the length of pendulums B is shorter and of the pendulum C is longer. The pendulum A is set into Vibration.
(b) Give reason for your observation.

