General Knowledge Questions and Answers - 1214
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Suppose you and your friend are on the Moon.Will you be able to hear any sound produced by your friend ?
Sound waves need a material medium for their propagation.Since there is no atmosphere on the Moon,one person cannot hear the sound produced by another person.
More Questions :
Discuss the role of medium in the propagation of sound.
What are infrasonics ?
What do you mean by reverberation and reverberation time ? How is reverberation controlled ?
Describe with the help of a diagram,how compressions and rarefactions are produced in air near a source of sound.
What are the characteristics of a sound ? Discuss each one of them briefly.
What is sound and how is it produced ?
What is a note ?
Discuss the structure of human ear from auditory aspect only.
A hospital uses an ultrasonic scanner to locate tumours in a tissue.What is the wavelength of sound in a tissue in which the speed of sound is 1.7 km/s ? The operating frequency of the scanner is 4.2 MHz.
Explain the working and application of a sonar.
What is sound ? Discuss the method of its production.
What is ultrasound ? Describe some of its practical applications ?
Can sound waves travel through vacuum ?
What is audible range ?
What are ultrasonics ?
What is persistence of hearing ?
How is sound propagated through a material medium ? What is wave motion ?
Distinguish between music and noise.
Describe an experiment to show that sound waves can be reflected.What are the laws of reflection of sound waves.
What is an echo ? How is it formed ?
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