Comprehensive Questions, Waves
See here answers to the comprehensive questions on waves included in the new course of First Year.
S No | Question |
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Question 1 | What is meant by wave motion? Define the terms wave length and frequency, and derive the relationship between them. See Answer |
Question 2 | Describe longitudinal and transverse waves whih examples and clearly explain the difference between them. See Answer |
Problem 3 | Explain the following terms; (a) Crest (b) Trough (c) Compression (d) Rarefaction (e)Node (f) Anti-node See Answer |
Problem 4 | What do you mean by stationary waves? Show that as the string vibrates in more and more loops, its frequency increases and wavelength decreases. See Answer |
Problem 5 | Explain Newton’s formula for the speed of sound. Show that how it was corrected by a French scientist Laplace? See Answer |
Problem 6 | Explain the speed of sound in a gas and give all the factors which affect the speed of sound in the air. See Answer |
Problem 7 | How the speed of sound varies in the air with temperature and hence show that for each one degree centigrade rise in temperature the speed of sound increases by 0.61 m/s? See Answer |
Problem 8 | What are beats? Explain how they are produced and show that the number of beats per second is equal to the difference in frequencies of the two sources? See Answer |
Problem 9 | What is Doppler’s effect? Derive expression for the frequencies heard, (a) When the sounding source approaches a stationary listener. (b) When listener moves toward a stationary sounding source. See Answer |
Problem 10 | What are organ pipes? Show that an open organ pipe is richer in harmonics than a closed organ pipe? See Answer |
Problem 11 | Explain the vibration in a closed organ pipe and show that the frequency of third harmonic is 5v/4L. See Answer |
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