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प्रश्न
Fill in the blank.
The pitch of a sound depends on its ________.
Pitch of a sound depends on the _____ vibration.
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उत्तर १
The pitch of a sound depends on its frequency.
उत्तर २
Pitch of a sound depends on the frequency of the vibration.
संबंधित प्रश्न
Which wave property determines (a) loudness, (b) pitch?
What are wavelength, frequency, time period and amplitude of a sound wave?
How does a man’s voice differ from a woman’s voice ?
Name the characteristic which differentiates two sounds of the same pitch and same loudness.
Define the term intensity of a sound wave. State the unit in which it is measured.
Name the two types of waves which can be generates in a long flexible spring (or slinky).
Explain the terms 'crests' and troughs' of a wave? What type of waves consist of crests and troughs?
Which of the following can produce longitudinal waves as well as transverse waves under different conditions?
How does the velocity of a wave vary with temperature?
What causes sound?
State the speed of (i) light and (ii) sound in air?
State three conditions necessary for hearing sound.
Match the following.
| Ultrasonics | Frequency below 20Hz |
| Speed of sound in air | Needs material medium |
| Infrasonics | 330ms-1 |
| Sound propagation | Frequency more than 20000 Hz |
Through which medium sound travels faster, iron or water? Give reason.
Describe with diagram, how compressions and rarefactions are produced.
Draw a curve showing density or pressure variations with respect to distance for a disturbance produced by sound. Mark the position of compression and rarefaction on this curve. Also, define wavelengths and time periods using this curve.
Vibrations in a body produce ______.
In which medium the speed of the sound is maximum?
What are the uses of infrasonic sound?
