The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
The no. of oscillations produced in one second is called frequency .
Frequency of sound = 100 Hz
Total time = 1 min = 60 s
We know that,
Number of oscillations = Frequency × Total time
Number of oscillations/Vibrations = 100 × 60 = 6000
Therefore , the source vibrates 6000 times in a minute, producing a frequency of 100 Hz.
Explain the working and application of a sonar.
Explain how sound is produced by your school bell.
Explain how defects in a metal block can be detected using ultrasound.
Distinguish between loudness and intensity of sound.
A sound wave travels at a speed of 339 m s-1. If its wavelength is 1.5 cm, what is the frequency of the wave? Will it be audible?
Which characteristic of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
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What is meant by a pure substance?
In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium observations are in agreement with the law of conservation of mass.
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