LNMU B.SC physics part 1 questions download for free ~ LNMU Notes

Download LNMU b.sc physics part 1 2019 questions for free

L.N.M.U   DARBHANGA

LNMU PART 1 PHYSICS QUESTION DOWNLAOD

FULL MARKS : 75   |   PASS MARKS : 34

  PAPER – 1       

 

Download LNMU b.sc physics part 1 2019 questions for free

Answer any five questions, selecting two from each group, in which Q.no. 1 is compulsory.

 

1. Answer any three of the following (5 marks each).

(a)   State and prove Stroke’s theorem.

(b)   Show that gradient of a scalar is vector.

(c)   What do you mean by Surface energy and surface tension ?

(d)   What are the postulates  of special theory of relativity ?

(e)   Distinguish among free, forced and damped vibration. What is resonance ?

(f)   State Fourier’s theorem. What are its limitations ?

GROUP – A  (15 marks each)

2. Derive an expression for the depression produced at the loaded end of a light beam clamped horizontally at one end and loaded at the other.

3. Distinguish between gravity waves and ripples. Describe, with theory, the ripple method of determining surface tension of a liquid.

4. Deduce Poiseuille’s formula for the flow of a liquid through a capillary tube. State clearly the assumptions made.

5.  what is a flat spiral spring ? Deduce the theory of measuring modulus of rigidity of a material in the form of a flat spiral spring.

 GROUP – B

 

6. Establish mass energy relations. How this relation is put to experimental test ?

7. What is reverberation ? Deduce Sabine’s formula for the times of reverberation.

8. Set-up the differential equation for damped harmonic oscillation of a particle and obtain a solution for it.

9. Describe Michelson-Morley experiment and give the explanation of negative result obtained.

   BEST OF LUCK  👍

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