Sound Test - 43...

The linear distance between the compression and the adjacent rarefaction is 0.8 m. The wavelength of the longitudinal wave is

In the above figure, a boy is beating the drum using a stick and thus, drum produces a sound. In the other figure, another boy produces sound using a whistle. Choose the option which shows the correct waveforms in above figure.

Waves inside a gas are

Waves on water surface are

Take a metallic tumbler and a tablespoon. Strike the tablespoon gently at the brim of the tumbler (as shown in the figure above). Now suspend a small thermocole ball touching the rim of the tumbler and touch it to the vibrating tumbler. See how far the ball is displaced. Now, again strike the tablespoon at the brim of the tumbler but strike it hard this time. Again touch the thermocole to the vibrating tumbler and see how far the ball is displaced. Choose the correct option. 

A person is listening to a tone of $$500 \ Hz$$ sitting at a distance of $$450 \ m$$ from the source of the sound. What is the time interval between the successive compression from the source?

A person is listening to a tone of $$500$$ Hz sitting at a distance of $$450$$ m from the source of the sound. What is the time interval between the successive compression from the source ? 

Which of the following can be used to detect a flaw inside a metal block?

How far away should a deep sea diver be from an under-sea rock so that he can hear his own echo? (Speed of sound in water is 1500 m/s).

Which of the following statements is not true?