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संबंधित प्रश्न
Write true or false for a given statement.
A sound is a form of energy.
How is it possible to recognize a person by his voice without seeing him?
We can distinguish between the musical sounds produced by different singers on the basis of the characteristic of sound called :
What is sound? How is it produced?
Define the term wave velocity. Write its S.I. unit.
The sound of an explosion on the surface of a lake is heard by a boat man 100 m away and by a diver 100 m below the point of explosion.
(i) Who would hear the sound first: boatman or diver?
(ii) Give a reason for your answer in part (i).
(iii) If sound takes time t to reach the boatman, how much time approximately does it take to reach the diver?
Select the correct option:
The longitudinal waves can propagate only in
he sound of an explosion on the surface of a lake is heard by a boatman 120 m away and by a diver 120 m below the point of explosion. Out of the two persons, who would hear the sound first? Why?
Can you hear the sound produced due to the vibrations of second's pendulum?
Two observers are stationed in two boats 4.5 km apart. A sound signal sent by one, under water, reaches the other after 3 seconds. What is the speed of sound in the water?
