Roll No. [ | [T TTTTT] Total No. of Pages : 02
Total No. of Questions : 18
--- Content provided by FirstRanker.com ---
B.Tech. (CSE/ME/IT) (Sem.-1,2)
ENGG. PHYSICS/PHYSICS-I
Subject Code : PH-101
M.Code : 54016
Time : 3 Hrs. Max. Marks : 60
--- Content provided by FirstRanker.com ---
INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION -B & C have FOUR questions each.
- Attempt any FIVE questions from SECTION B & C carrying EIGHT marks each.
- Select atleast TWO questions from SECTION - B & C.
--- Content provided by FirstRanker.com ---
SECTION-A
Write short notes on :
- Define Faraday's law.
- Explain Dia and Para magnetism.
- What are ferrites?
- What is population inversion?
- Explain optical pumping.
- What is theory of relativity?
- Write postulates of old quantum theory.
- Define X-rays.
- What is Meissner effect?
- Define group and phase velocities.
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
SECTION-B
- Write Maxwell equations in differential form and discuss physical significance of each equation.
- What are magnetic materials? Discuss hard and soft magnetic materials with examples.
- Discuss possible transitions between two energy levels of an atomic system and deduce the expressions for Einstein Coefficients.
- Derive the expression for numerical aperture of an optical fibre in terms of acceptance angle.
--- Content provided by FirstRanker.com ---
SECTION-C
- Deduce the formula for relativistic variation of mass with velocity.
- Explain Bragg’s law and its applications in crystallography.
- Derive time dependent and time independent Schrodinger wave equation.
- What is superconductivity? Discuss Type-I-and Type-II superconductors.
--- Content provided by FirstRanker.com ---
NOTE : Disclosure of identity by writing mobile number or making passing request on any page of Answer sheet will lead to UMC case against the Student.
--- Content provided by FirstRanker.com ---
This download link is referred from the post: PTU B.Tech Question Papers 2020 March (All Branches)