Hz is the unit of
wavelength
frequency
time period
amplitude
Audible frequency range is
20 Hz to 2 kHz
20 Hz to 20 kHz
20 Hz to 200 kHz
20 Hz to 200 Hz
A sound wave travels at a speed of 330 m/s. If its wavelength is 1.5 cm, calculate the frequency of the sound wave.
22 kHz
30 kHz
10 kHz
35 kHz
Which of the following statement best describes frequency?
the maximum disturbance caused by a wave
the number of complete vibrations per second
the distance between one crest of a wave and the next one
the distance travelled by a wave per second
The example of a stringed instrument is
tabla
flute
mouthorgan
violin
Which kind of sound is produced in an earthquake before the main shock wave begins?
ultrasound
infrasound
audible sound
none of the above
If 15 waves are produced per second, what is the frequency?
20 Hz
30 Hz
15 Hz
1/15 Hz
The ultrasound waves can penetrate into matter to a large extent because they have
very high speed
very high frequency
very high wavelength
very high amplitude
Jaltarang is a
stringed instrument
wind instrument
percussion instrument
mixed instrument
Sound waves travel with a speed of 346 m/s in air. What is the wavelength of sound whose frequency is 692 Hz?
0.5 m
5 m
0.05 m
50 m