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D 53686 (Pages : 3) வா... வத்‌ வைகை

FIRST SEMESTER (CBCSS—UG) DEGREE EXAMINATION
NOVEMBER 2023

Physics/Applied Physics (Common for Double Main)
PHY 1B 01/APH 1B 01/PHY 1B 21—MECHANICS—I
(2020—2023 Admissions)
Time: Two Hours Maximum : 60 Marks
The symbols used in the question paper have their usual meanings
Section A (Short Answer Type)
Answer all questions in two or three sentences, each correct answer carries a maximum of 2 marks.
1. Explain Fictitious force.
2. State Newton’s third law of motion with one example.
3. With proper examples define contact forces.
4. What are the fundamental forces in nature ? Compare their strengths.
5. Explain the gravitational force of a sphere.
6. State and explain the work energy theorem.
7. Define moment of inertia. How is it related to angular momentum ?
8. Draw the energy diagram for a harmonic oscillator and explain.
9. Illustrate the working of Drum major’s baton.
10. What are conservative forces ? Give examples.
11. Define power with its various units.
12. State and explain parallel axis theorem.

(Ceiling - 20)

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