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Physics – II year – Model question paper – 2013 – 2014
Section – A
I Very short answer questions
10× 2 = 20 M
Answer all questions, each carries two marks.
(1) What are beats?
(2)Can there be electric intensity at a point with zero electric potential? Give example.
(3) define resistivity (or) Specific resistance.
(4)Magnetic lines form continuous closed loops. Why?
(5)State Lenz’s law.
(6)What is transformer ratio?
(7)Give two uses of infrared rays.
(8) What is work function?
(9) Draw the circuit symbol for p – n – p and n - p – n transistors.
(10) Define modulation. Why is it necessary?
Section – B
II Short Answer questions
(i)Answer any six questions.
(ii) Each question carries four marks.
6×4 = 24 M
(11)What is Doppler Effect? Obtain an expression for the apparent frequency of sound guard when the source is in motion with respect to an observer at rest.
(12)Explain polarization by refraction.
(13)State Gauss’s law in electrostatics and explain its importance.
(14)Derive an expression for the equivalent capacity when capacitors are connected in series.
(15)State Kirchhoff’s law for an electrical network. Using these laws deduce the condition for balance in wheat stone bridge.
(16)Derive an expression for the magnetic induction at a point on the equatorial line of a bar magnet.
(17)Discuss Bohr’s theory of the spectrum of hydrogen atom.
(18)What is rectification? Explain the working of a Full wave rectifier.
Section – C
III Long answer4 questions
2×8 = 16 M
(i) Answer any two questions (ii) Each question carries ‘eight’ marks
(19) Define Snell’s law. Using a neat labeled diagram derive an expression for the refractive index of the material of an equilateral prism.
(b)A ray of
Physics – II year – Model question paper – 2013 – 2014
Section – A
I Very short answer questions
10× 2 = 20 M
Answer all questions, each carries two marks.
(1) What are beats?
(2)Can there be electric intensity at a point with zero electric potential? Give example.
(3) define resistivity (or) Specific resistance.
(4)Magnetic lines form continuous closed loops. Why?
(5)State Lenz’s law.
(6)What is transformer ratio?
(7)Give two uses of infrared rays.
(8) What is work function?
(9) Draw the circuit symbol for p – n – p and n - p – n transistors.
(10) Define modulation. Why is it necessary?
Section – B
II Short Answer questions
(i)Answer any six questions.
(ii) Each question carries four marks.
6×4 = 24 M
(11)What is Doppler Effect? Obtain an expression for the apparent frequency of sound guard when the source is in motion with respect to an observer at rest.
(12)Explain polarization by refraction.
(13)State Gauss’s law in electrostatics and explain its importance.
(14)Derive an expression for the equivalent capacity when capacitors are connected in series.
(15)State Kirchhoff’s law for an electrical network. Using these laws deduce the condition for balance in wheat stone bridge.
(16)Derive an expression for the magnetic induction at a point on the equatorial line of a bar magnet.
(17)Discuss Bohr’s theory of the spectrum of hydrogen atom.
(18)What is rectification? Explain the working of a Full wave rectifier.
Section – C
III Long answer4 questions
2×8 = 16 M
(i) Answer any two questions (ii) Each question carries ‘eight’ marks
(19) Define Snell’s law. Using a neat labeled diagram derive an expression for the refractive index of the material of an equilateral prism.
(b)A ray of