10005
Reg. No.: Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIRST SEMESTER B.TECH DEGREE SPECIAL EXAMINATION, AUGUST 2016

PH100 ENGINEERING PHYSICS
Max. Marks: 100 Duration: 3 Hours

Part-A

Answer ail questions. Each question carries 2 marks.
1. What is a forced oscillator?
2 What are the factors on which the frequency of vibration of a stretched string depends?
3. Write the principle of superposition of waves.
4 What is grating element. How it is related with the number of lines drawn per unit
length of the grating.
What is double refraction?
What is Meissner effect?

Write the normalization condition of a wave function and its significance.

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What is the minimum size of a cell in phase space in Quantum Statistics? What is the
probability of occupancy for the Femi level at non zero absolute temperature?

9. The absorption co- efficient of open window is one. Justify the statement.

10. Mention any four applications of ultrasonic waves.

11. Name four outstanding characteristics of Laser.

12. Name the two different types of fibre optic sensors.

Part-B
Answer any 10 questions. Each question carries 4 marks

13, Compare electrical and mechanical oscillating systems.

14. Equation of transverse wave travelling along a string is = 4sin (0.010%- 2.00 where
x and y are in centimetres and t is in second. Find (i)Amplitude (ii) Wavelength
(iii)Initial phase at the origin and (iv)Frequency of the wave

15. With the help of Cosine law, how can you account for the colours of thin films?

16. What is the highest order of spectrum which may be seen with light of wavelength 5 X

10011 by means of grating with 3000 lines/cm.