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Module - III

Oscillations and Waves

Lectures: 03

Pre Test Questions

1. (a) What is a periodic Phenomenon? Give few examples.
   

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   (b) Define Oscillation. What is the difference between mechanical and non-mechanical Oscillation?
   (c) What is Phase? Define phase constant.
2. Define angular frequency and how it is related with time period. Give the relation. Give a physical relation showing the relation between them.
3. What is Simple Harmonic Motion? What is a simple pendulum? How can you relate the motion of a simple pendulum to Simple Harmonic Motion? Write the differential equation linking acceleration to displacement.
4. What are Waves? What is a pulse? What are the different types on waves?

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5. What are Standing Waves? How do you define harmonics of standing waves?
6. What is Doppler's Effect?
7. Define Resonance. What do mean by Beats?
8. What is meant by Damping? Distinguish between under damping and over damping.
9. Distinguish between rarefaction and compression, and crest and trough.

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10. How does a wave pulse interact for the following cases:
    i) When it encounters a fixed boundary?
    ii) When it encounters a free boundary?

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