Advertisements
Advertisements
Questions
Fill in the blank.
The pitch of a sound depends on its ________.
Pitch of a sound depends on the _____ vibration.
Advertisements
Solution 1
The pitch of a sound depends on its frequency.
Solution 2
Pitch of a sound depends on the frequency of the vibration.
RELATED QUESTIONS
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
Why is sound wave called a longitudinal wave?
Write true or false for a given statement.
The frequency is measured in hertz.
Write true or false for a given statement.
A ticking clock sound is heard late when heard through a metal.
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
Define time period.
Are sound waves longitudinal or transverse?
Give two examples each of longitudinal waves and transverse waves.
Answer the following question :
Can sound travel in vacuum?
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?
An observer A fires a gun and another observer B at a distance 1650 m away from A hears its sound. If the speed of sound is 330 m s-1, find the time when B will hear the sound after firing by A.
State the relation between the wavelength and the frequency.
A sound wave of wavelength 1/3 m has a frequency 996 Hz. Keeping the medium same, if frequency changes to 1328 Hz. Calculate
- velcoity of sound
- new wavelength.
What is the effect of temperature and pressure on the speed of sound in a gas?
Sound travels in air:
How does the sound produced by a vibrating object in a medium reach your ears?
If the energy in a longitudinal wave travels from south to north, the particles of the medium would be vibrating in _____.
A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
Two sound waves X and Y have the same amplitude and the same wave pattern but their frequencies are 60 Hz and 120 Hz respectively, then ______.
