Download PTU B.Tech 2020 March IE 1st Sem Applied Physics Question Paper

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Roll No. | Total No. of Pages : 02
Total No. of Questions : 09

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B.Tech. (Ind. Engg. & Mgt. (Spl. in TQM)) PT (Sem.-1)
APPLIED PHYSICS
Subject Code : IEM-103
M.Code : 61003
Time : 3 Hrs. Max. Marks : 40

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INSTRUCTIONS TO CANDIDATES :

1. Attempt All EIGHT questions from SECTION-A carrying TWO Marks each.
2. Attempt any SIX out of EIGHT questions from SECTION-B carrying FOUR marks each.

SECTION-A

1. Write briefly :
   1. What are the advantages of SI system of units?

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   2. State and explain Newton’s second law of motion.
   3. A truck and a car are moving with same kinetic energy on a straight road. Their engines are simultaneously switched off: Which one will stop at a lesser distance?
   4. State ‘Bernoulli’s principle’.
   5. State the law of conservation of energy.
   6. State and explain ‘Ampere law’.

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   7. Transverse waves are not produced in liquids and gases. Why?
   8. Differentiate between intrinsic and extrinsic semiconductors.

SECTION-B

2. Explain the need for measurements in physics. What do you know about fundamental and derived units?

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3. A force of 0.04 Newton acts upon a body. As a result, the speed of the body changes from 0.30 ms™ to 0.10 ms™, in passing through a certain distance. Find the distance if the mass of the body is one kilogram.
4. State and explain work energy theorem.
5. Explain surface energy. Establish its relation with surface tension.
6. Discuss the different mechanisms of heat transfer with illustrations.
7. A uniform field of magnetic induction B points horizontally from south to north, its magnitude is 1.5 Wb/m’. If a 5 MeV proton moves vertically downward through this field, what force will act on it?

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8. What are standing waves? Give important characteristics of standing waves.
9. Explain the operation of a p-n junction in the forward and reverse biased conditions and draw the forward and reverse biased characteristics.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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