Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) BT-Bio Technology 2020 December 2nd Sem 75369 Introduction To Physics Biotechnology Previous Question Paper
Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (Bio Tech) (2018 & Onwards) (Sem.?1,2)
INTRODUCTION TO PHYSICS : BIOTECHNOLOGY
Subject Code : BTPH-107-18
M.Code : 75369
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION - B & C . have FOUR ques tions each.
3 .
Attempt any FIVE questions from SECT ION B & C carrying EIGHT marks eac h.
4 .
Select atleast T WO que stions from SECT ION - B & C.
SECTION-A
Answer briefly :
Q1. State the principle and working of a laser.
Q2. Explain the conditions for total internal reflection phenomena.
Q3. Mention various fiber parameters.
Q4. Differentiate between soft and hard magnetic materials.
Q5. Differentiate between type-I and type-II superconductors.
Q6. Justify that "Meissner effect is the true verification of superconducting state".
Q7. Give the difference between continuous and characteristic X-rays.
Q8. Mention properties of ultrasound waves.
Q9. Explain the concept of wave-particle duality.
Q10. What is the difference between a quantum wire and quantum dot?
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SECTION-B
Q11. a) Explain the construction, working and energy diagram of Ruby laser.
5
b) Discuss some medical applications of lasers.
3
Q12. a) Discuss the construction and working of step and graded index fibers.
5
b) Discuss different losses associated with optical fibers and their control.
3
Q13. a) Make a comparison between the characteristics of dia, para, ferro, ferri and ferrite
magnetic materials.
5
b) Explain the phenomena of magnetostriction and mention its few applications.
3
Q14. a) Discuss the superconducting state and its various properties.
4
b) Give a brief account of BCS theory of superconducting state.
4
SECTION-C
Q15. Give an account of the properties of X-rays and discuss the method of their production. 8
Q16. a) Explain the principle and working of ultrasound generator.
5
b) Mention the adverse effect of ultrasound waves.
3
Q17. a) Write a short note on de-Broglie waves and their properties.
3
b) Give definitions of Photoelectric effect and Compton Effect.
3
c) Calculate the frequency and wavelength of a photon whose energy is 75eV.
2
Q18. a) Discuss the top-down and bottom-up methods of nanoparticles synthesis.
4
b) What are carbon nanotubes? Discuss how various types of carbon nanotubes can be
formed from graphene?
4
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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This post was last modified on 13 February 2021