MODEL QUESTION PAPER
PHYSICS – Paper II
Time : 3 Hours                              Max Marks : 60

Section – A

(Very short Answer type)                                          10x2=20 Marks

i) Answer all questions.
ii) Each question carries 2 marks.

1. What is Doppler Effect ? Mention any two of its applications.
2. Why is ‘Red Light’ used in danger signal ?
3. Which phenomenon of light establishes its transverse nature of vibrations ?
4. Define Magnetic permeability of a magnetic material Mention S.I. unit of relative Magnetic permeability ?
5. Explain why electric lines of force do not intersect ?
6. Why the internal resistance of a voltmeter is very high ?
7. Give the principle on which a transformer works Mention the use of a transformer?
8. What do you understand by the Dual nature of matter ?
9. What is ‘mass defect’ ? How is it related to the binding energy of a nucleus ?
10. What is meant by ‘Forward Biasing’ of a p-n junction diode ? Give the figure.