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C 22101 (Pages : 3) पपिथ ,०००००००००००००००००१०१०००००००००००००००००००५

SECOND SEMESTER (CBCSS—UG) DEGREE EXAMINATION, APRIL 2022
Physics/Applied Physics
PHY 2B 02/APH 2B 02—MECHANICS—II
(2021 Admissions)

Time : Two Hours Maximum : 60 Marks

The symbols used in the question paper have their usual meanings.
Section A

Answer atleast eight questions.
Each question carries 3 marks.
All questions can be attended.

Overall ceiling 24.

1. Define the time average of a function f (¢) with proper diagrams.
2. Explain Coriolis force. What is the effect of Coriolis force on wind moving over the surface of earth?
3. Briefly explain the characteristic impedance of a travelling wave.
4. Explain the terms:
(a) Apogee, and
(b) Perigee.
5. Define:
(a) Phase velocity, and
(b) Group velocity.
6. Write the equation of a forced damped harmonic oscillator and describe the terms involved.
7. Define central force motion and list any two features of central force motion.
8. Discuss the condition for non-dispersive wave.

9. Two particles are interacting under a central force. Explain how a two-body problem can be reduced
to a one-body problem.

10. Briefly explain about the two types of wave motion.

Turn over

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