II PUC Physics Exam Question Paper

Will you please provide the Question Paper of the II PUC Physics Exam ?

[Arun Vats]

Here is the list of few questions of II PUC Physics Exam Question Paper which you are looking for .

I Answer the following. 10 x 1 = 10
1. Draw the electric lines of force in the case of two positive point charges
separated by a small distance.
2. Name the charge carriers in metallic conductors.
3. A coil perpendicular to a uniform magnetic field is rotated by 1800. What is
the change in the flux through it?
4. Write the expression for displacement current.
5. Mention one common method of generating X-rays.
6. Write the expression for magnifying power of a telescope in terms of focal
lengths.
7. What is the outcome of Davisson Germer experiment?
8. How does nuclear radius of an atom depend on its mass number?
9. Who discovered the phenomenon of photoelectric effect?
10. What is demodulation?
PART – B
II Answer any FIVE of the following questions. 5×2=10
11. Write two properties of an electric charge.
12. What is electrostatic shielding? Mention its one application.
13. State Kirchhoff’s rules of an electrical network.
14. Mention two properties of a diamagnetic material.
15. What are eddy currents? Mention one application of eddy currents.
16. Draw the ray diagram to construct an image when an object is placed
between the principal focus and pole of a concave mirror.
17. Mention two necessary conditions for doping.
18. Draw the block diagram of a generalized communication system.
PART – C
III Answer any FIVE of the following questions. 5×3=15
19. Write the expression for electric potential at a point due to a dipole and
hence arrive at the expression for electric potential at a point on the dipole
axis.
20. Obtain the expression for effective capacitance of three capacitors connected
in parallel.
21. What is a cyclotron? Draw its schematic labeled diagram.
22. Explain briefly the coil-magnet experiment to demonstrate the phenomenon
of electromagnetic induction.
23. What is meant by alternating current? Define its amplitude and time period.
24. Using Huygen’s wave theory of light, show that the angle of incidence is equal
to angle of reflection in case of reflection of a plane wave by a plane surface.
25. Mention three experimental observations of photoelectric effect.
26. Classify metals, semiconductors and insulators based on the band theory of
solids.
PART – D
IV Answer any TWO of the following questions. 2×5=10
27. Obtain the expressions for effective emf and effective internal resistance
when ‘n’ different cells are connected in parallel.
28. State and explain Biot-Savart’s law and write its mathematical equation in
vector form.
29. Assuming the expression for magnetic field at a point on the axis of a circular
current loop, show that a long current carrying solenoid acts as a bar magnet.
V Answer any TWO of the following questions. 2×5=10
30. Derive the expression for the refractive index of the material of a prism in
terms of the angle of the prism and angle of minimum deviation.
31. State radioactive decay law. Show that t
oe N N l - = for a radioactive element
with usual notations.
32. What is a solar cell? Explain its working with a diagram and draw the I -V
characteristics.
VI Answer any THREE of the following questions. 3×5=15
33. The electrostatic force on a metal sphere of charge 0.4 mC due to another
identical metal sphere of charge - 0.8 mC in air is 0.2N. Find the distance
between the two spheres and also the force between the same two spheres
when they are brought into contact and then replaced in their initial
positions.
34. In the given circuit, calculate the (i) effective
resistance between A and B (ii) current through
the circuit and (iii) current through 3 W resistor.
35. A resistor, an inductor and a capacitor are connected in series with a 120V,
100Hz ac source. Voltage leads the current by 350 in the circuit. If the
resistance of the resistor is 10W and the sum of inductive and capacitive
reactances is 17W, calculate the self-inductance of the inductor.