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LAKHMIR SINGH & MANJIT KAUR-SOUND-Long Answer Type Questions
- (a) What is sound? What type of waves are sound waves in air? (b) De...
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- (a) How is sound produced? Explain with the help of an example. (b) ...
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- (a) An electric bell is suspended by thin wires in a glass vessel and ...
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- (a) What are longitudinal waves and transverse waves? Explain with the...
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- (a) Explain the terms 'compression' and rarefactions of a wave. What t...
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- (a) Explain the terms 'crests' and 'troughs' of a wave? What type of w...
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- (a) When we put our ear to a railway line, we can hear the sound of an...
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- (a) What is meant by 'reflection of sound'? What type of surfaces are ...
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- (a) What is an echo? How is echo formed? (b) What is the minimum dis...
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- (a) What is ultrasound? What is the difference between ordinary sound ...
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- (a) What are infrasonic waves? Name two animals which produce infrason...
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- (a) Define the following terms: (a) Echolocation (b) Echocardiography,...
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- Draw a neat and labelled diagram of the human ear. With the help of th...
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