
The diagram represents two different sound waves.




Important Questions on Sound
The diagram shows the position of the air particles due to propagation of sound, represented by straight lines, at a particular instant from to .
Which of the following statements correctly depicts the pressure variation with respect to distance?


A microphone is connected to a cathode ray oscilloscope. A loudspeaker giving a single note is switch on. The trace shown in the figure appears on the screen.
Which of the following shows the softer but same frequency note of the given note?

Four sound waves and are shown in figures below. Which of the following is correct statement?


Read the passage carefully and answer the following questions.
Two tuning forks, and vibrate with frequencies in the ratio and their wavelengths in the ratio respectively. Both the tuning forks are placed in different media.
Find the tuning fork producing greater velocity of sound.

Read the passage carefully and answer the following questions.
Two tuning forks, and vibrate with frequencies in the ratio and their wavelengths in the ratio respectively. Both the tuning forks are placed in different media.
The tuning fork produces relatively :

(i) Time taken between successive clapping is
(ii) The distance between the man and the wall, after he stops clapping, if he hears one more echo is .
(iii) The distance between the man and the wall, after he stops clapping, if he hears four or more echoes is .
