Advertisements
Advertisements
प्रश्न
Describe an experiment to show the production of sound having low and high pitch.
Advertisements
उत्तर
Take few rubber bands some thicker and longer, few thinner and of shorter length. Cut and stretch these rubber bands by holding one end of the string in your mouth under the teeth and the other end in your hand. Now pluck these rubber bands one by one. The rubber bands thicker and longer will produce sound with a lower pitch. The rubber bands thinner and shorter will produce sound with a higher pitch.
APPEARS IN
संबंधित प्रश्न
Give two examples each of longitudinal waves and transverse waves.
Explain the terms 'compressions' and 'rarefactions' of a wave. What type of waves consist of compressions and rarefactions.
Select the correct option:
If the frequency of a wave is 25 Hz. the total number of compressions and rarefactions passing through a point in 1 second is :
A thin metal plate is placed against the teeth of cog wheel. Cog wheel is rotated at a speed of 120 rotations per minute and has 160 teeth. Calculate:
- frequency of node produced.
- speed of sound, if wavelength is 1.05 m.
- what will be the effect when the speed of cog wheel is doubled?
Sound travels in air:
Number of vibrations produced in one second is ______.
Why does an empty vessel produce more sound than a filled one?
Why is the ceiling and wall behind the stage of good conference halls or concert halls made curved?
What do you understand by the term echo?
