Advertisements
Advertisements
प्रश्न
What is the SI unit of frequency?
Advertisements
उत्तर
The SI unit of frequency is hertz (Hz).
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
Sound is produced when a body ______.
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 successive compressions from the source?
Which of the following cannot transmit sound? Water, Vacuum, Aluminium, Oxygen gas
Name the physical qantity whose SI unit is 'hertz'.
Name four ways in which sound can be produced.
Give reason for the following :
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
A device called oscillator is used to send waves along a stretched string. The string is 20 cm long, and four complete waves fit along its length when the oscillator vibrates 30 times per second. For the waves on the strings.
(a) what is their wavelength?
(b) what is their frequency
(c) what is their speed?
Match the following:
| Human larynx | Vibrations of metal arms |
| Loudspeaker | Vibrations in air column |
| Jal-Tarang | Vibrations in vocal cords |
| Tuning fork | Vibrations in strings |
| Sitar | Vibrations of screen |
Sound is produced by ______.
The substance through which sound is transmitted is called ______.
