Download JNTUA B.Tech 1-1 R15 2019 Dec Supply 15A56103 Basic Physics Question Paper

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Code: 15A56103

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B.Tech I Year I Semester (R15) Supplementary Examinations November/December 2019

BASIC PHYSICS

(Food Technology)

Time: 3 hours Max. Marks: 70

PART - A

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(Compulsory Question)

Answer the following: (10 X 02 = 20 Marks)

1. What is polarization?
2. Define gradient of a scalar field.
3. What are electromagnetic waves?

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4. Define a non-inertial reference frame.
5. What is Heisenberg uncertainty principle?
6. What is population inversion?
7. What is forbidden energy gap?
8. Define Bravais Lattices.

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9. What is Fermi-energy?
10. What is radioactive decay?

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PART - B

(Answer all five units, 5 X 10 = 50 Marks)

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UNIT - I

2 Write the differential equation for the damped oscillation of a particle and solve it. Also discuss various cases.

OR

3 State and explain Gauss divergence theorem.

UNIT - II

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4 Derive Maxwell's equations and give their physical interpretation.

OR

5 What are Galilean transformations? Derive Galilean transformation equation for two inertial frames.

UNIT - III

6 (a) What are the failures of classical physics?

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(b) Derive an expression for the wavelength of matter waves.

OR

7 How to construct and reconstruct a hologram?

UNIT - IV

8 State and explain Bragg's law. Mention its applications.

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OR

9 Differentiate conductors, semiconductors and insulators.

UNIT - V

10 Discuss various models to explain the properties of nucleus.

OR

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11 (a) What are the similarities and dissimilarities between nuclear fission and fusion?

(b) Write a note on elementary particles.

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