INTERMEDIATE 1st YEAR PHYSICS IMPORTANT QUESTIONS
8- Marks
1.
Develop
the notation of work and kinetic energy and show that it leads to work-energy
theorem?
2.
What
are collisions? Explain the possible types of collisions? Develop the theory of
one dimensional Elastic collision?
3.
State
and prove law of conservation of energy in case of freely falling body? What
are the conditions under which the law of conservation of energy is applicable?
4.
Define
simple harmonic motion. Show that the motion of projection of a particle
performing uniform circular motion, on any diameter is simple harmonic?
5.
Show
that the motion of a simple pendulum is simple harmonic and hence derive an
equation for its time period. Define second pendulum?
6.
Derive
the equation for the kinetic energy and potential energy of a simple harmonic
oscillator
7.
and
show that the total energy of a particle in simple harmonic motion is constant
at any point on its path?
8.
State
second law of Thermodynamics, how is the heat engine different from a refrigerator?
9.
Explain
the reversible and irreversible process. Describe the working of Carnot engine?
Obtain an expression for the efficiency?
4-Marks
1.
Show
that the maximum height reached by a projectile launched at an angle of 450 is
one quarter of its range?
2.
Show
that the trajectory of an object thrown at certain angle with the horizontal is
a parabola?
3.
State
parallelogram law of vectors. Derive an expression for the magnitude and
direction of the resultant vector?
4.
Explain
the advantage and disadvantage of friction?
5.
Mentions
the method used to reduce the friction?
6.
State
Newton’s second law of motion? Hence derive the equation of motion F =ma?
7.
Define
the terms momentum and impulse. State and explain the law of conservation of
linear momentum?
8.
Distinguish
between centre of mass and centre of gravity?
9.
Define
vector product. Explain different properties of vector product with examples?
10. Define angular velocity and
derive its equation, v = rω?
11. What is orbital velocity? Obtain
an expression for it?
12. What is escape velocity? Obtain
an expression for it?
13. What is geostationary satellite?
State its uses?
14. Describe the behavior of a wire
under gradually increasing load?
15. Define strain energy and derive
the equation for the same?
16. In what way is the anomalous behavior
of water advantageous to aquatic animals?
17. Explain conduction, convection
and radiation with examples?
18. Write short notes on triple point
of water?
2-Marks
1.
What
is the discovery of C V Raman?
2.
What
is the contribution of S Chandra Sekhar to Physics?
3.
What
is meant by physics?
4.
Distinguish
between accuracy and precision?
5.
How
can systematic errors be minimized or eliminated?
6.
Distinguish
between fundamental units and derived units?
7.
Why
do we have different units for the same physical quantity?
8.
If
A = i + j what is the angle between
vector 45 with x-axis?
9.
What
is inertia? What gives the measure of inertia?
10. Two forces of magnitudes 3 units
and 5 units act at 600 with each other. What is the magnitude of their
resultant?
11. When two right angled vectors of magnitude
7 units and 24 units combine, what is the magnitude of their resultant?
12. If P = 2 i + 4 j +14k and Q = 4 i+
4j +10k. Find the magnitude of P + Q ?
13. When a bullet is fired from a
gun, the gun gives a kick in the backward direction. Explain?
14. A bomb is exploded into two
pieces, the pieces must travel in opposite directions. Explain?
15. Why should a helicopter
necessarily have two propellers?
16. Is it necessary that a mass
should be present at the centre of mass of any system?
17. Why are spokes provided in a bicycle
wheel?
18. By spinning eggs on a table top,
how will you distinguish a hardboiled egg from a raw egg?
19. Define viscosity. What is the
C.G.S unit for coefficient of viscosity?
20. What is the principle behind the
carburetor of an automobile?
21. Why are drops and bubbles
spherical?
22. Give an expression for the excess
pressure in a liquid drop?
23. What is Angle of Contact?
24. Give an expression for the excess
pressure for the soap bubble in air?
25. Why gap are left between rails on
a railway track?
26. Ventilators provided in rooms
just below the roof. Why?
27. Distinguish between heat and
temperature?
28. Can a substance contract on
heating? Give an example?
29. What is Green House Effect?
Explain Global Warming?
30. What is latent heat of Vaporization?
31. We cannot open or close the door
by applying force at the hinges. Why?
32. The roof buildings are often
painted white during summer. Why?
33. Define Mean Free Path?
34. State Boyle’s law and Charles’
law?
35. State Dalton’s Law of Partial
Pressure?
36. When does a real gas behave like
an ideal gas?
37. What is the expression between
pressure and kinetic energy of a gas molecule?
38. State Newton’s Law of Cooling?
39. What is magnus effect?
40. Pressure of an ideal gas in a
container is independent of shape of the container. Explain?
INTERMEDIATE 2nd YEAR PHYSICS IMPORTANT QUESTIONS
8- Marks
1. Explain
the formation of stationary waves in stretched strings and hence deduce the
laws of transverse waves in stretched strings.
2. Explain
the formation stationary waves in an air column enclosed in openpipe.derive the
equations for the frequencies of the harmonics produced.
3. How
are the stationary waves formed in a closed pipe? Explain the various modes of
vibrations in a closed pipe and establish the relation between their frequencies.
4. What
is Doppler Effect? Obtain an expression for the apparent frequency of sound
heard when the source is in motion with respect to an observer at rest?
5. What
is Doppler shift? Obtain an expression for the apparent frequency fo sound
heard when the observer is in motion with respect a source at rest?
6. State
Kirchoff’s law for an electrical network using these laws deduce the condition
for balancing in a Wheatstone bridge. Three resistors 2Ω, 4Ω and 5Ω are
combined in parallel. What is the total resistance of the combination?
7. State
the working principle of potentiometer explains with the help of circuit
diagram. How the emf of two primary cells are compared by using the
potentiometer.
8. State
the working principle of potentiometer explains with the help of circuit
diagram. How the potentiometer is used, to determine the internal resistance of
the primary cell.
9. In
a household the bulb of 100W each are lighted for 4 hours daily and six tube
lights of 20W each ar lighted for 5 hours daily and a refrigerator of 400W is
worked for 10 hours daily for a month of 30 days. Calculate the electricity
bill if the cost of one unit is Rs 4.00.
10. What
is radioactivity? State the law of radioactive decay. Show that radioactive
decay is exponential in nature.
11. Explain
the principle and working of a nuclear reactor with help of a labelled diagram
4-Marks
1. Define
focal length of a concave mirror. Prove that the radius of curvature of concave
mirror is double its
focal length?
2. Define
critical angle? Explain total internal reflection using a neat diagram?
3. Explain
the formation of mirage?
4. Explain
the formation of a Rainbow?
5. With
a neat labeled diagram explain the formation of image in a simple microscope?
6. Why
does the setting Sun appear red?
7. Explain
Doppler Effect in light. Distinguish between Red Shift and Blue Shift?
8. Derive
the expression for the intensity at a point where interference of light occurs.
Arrive at the conditions for maximum and zero intensity?
9. Does
the principle of conservation of energy hold for interference and diffraction
phenomena? Explain briefly?
10. How
do you determine the resolving power of your eye?
11. Disuss
the intensity of transmitted light when a polaroid sheet is rotated between two
crossed polaroids?
12. State
and explain Coulomb’s inverse square law in electricity?
13. Derive
an expression for the electric intensity of electric field at a point on the
axial line of an electric dipole?
14. Derive
an expression for the electric intensity of electric field at a point on the
equatorial line of an electric dipole?
15. State
Gauss's law in electrostatics and explain its importance?
16. Define
intensity of electric field at a point. Derive an expression for the intensity
due to a point charge?
17. Derive
the equation for the couple acting on an electric dipole in a uniform electric
field?
18. Derive
an expression for the capacitance of a parallel plate capacitor?
19. Derive
the formula for equivalent capacitance when the capacitors are connected in
series?
20. Derive
the formula for equivalent capacitance when the capacitors are connected in parallel?
21. Derive
an expression for the electrostatic potential energy of a system of two point
charges and find its relation with electric potential of a charge?
22. State
and explain Biot – Savart law?
23. State
and explain Ampere’s law?
24. Find
the magnetic induction due to a long current carrying conductor?
25. Derive
an expression for the magnetic induction at the centre of a current carrying
circular coil using Biot-savart law?
26. Obtain
an expression for the emf induced across a conductor which is moved in a
uniform magnetic field which is perpendicular to the plane of motion?
27. Describe
the ways in which Eddy currents are used to advantage?
28. Obtain
an expression for the mutual inductance of two long co-axial solenoids?
29. What
are the limitations of Bohr’s theory of hydrogen atom?
30. Explain
the different types of spectral series of Hydrogen atom?
31. Write
a short note on de-Broglies explanation of Bohr’s second postulate of
quantization?
32. Define
NAND and NOR gates. Give their truth tables?
33. Describe
how a semi -conductor diode is used as a half wave rectifier?
34. What
is rectification? Explain the working of a full wave rectifier?
35. Explain
the working of LED and what are its advantages over conventional incandescent
low power lamps?
36. Distinguish
between the half- wave and full – wave rectifiers?
37. Explain
the operation of a NOT gate and give its truth table?
2-Marks
1. Define
‘power’ of a convex lens. What is its unit?
2. What
‘dispersion’? Which colour gets relatively more dispersed?
3. What
is myopia? How can it be corrected?
4. What
is Hypermetropia? How can it be corrected?
5. Distinguish
between ammeter and voltmeter?
6. How
do you convert a moving coil galvanometer into an ammeter?
7. How
do you convert a moving coil galvanometer into a voltmeter?
8. A
circular coil of radius ‘r’ having N turns carries a current ‘i’. What is its
magnetic moment?
9. What
is the importance of Oersted’s experiment?
10. Define
magnetic susceptibility? Mention its unit?
11. What
is the magnetic moment associated with a solenoid?
12. Define
magnetic declination?
13. Magnetic
lines form continuous closed loops .Why?
14. What
happens to the compass needles at the Earth’s poles?
15. What
are the units of magnetic moment, magnetic induction and magnetic field?
16. Classify
the following materials with regard to magnetism: Manganese, Cobalt, Nickel,
Bismuth, Oxygen, Copper?
17. Define
magnetic inclination or angle of dip?
18. What
type of transformer is used in a 6V bed lamp?
19. What
is the phenomenon involved in the working of a transformer?
20. What
is the average wavelength of X-rays?
21. Give
any two uses of infrared rays?
22. What
are applications of microwaves?
23. Microwaves
are used in radars. Why?
24. What
are “Cathode Rays”?
25. What
is “Work Function”?
26. What
is Photo Electric Effect?
27. Write
down Einstein’s Photo Electric Equation?
28. Write
down the de-Broglie’s relation and explain the terms therein?
29. Draw
the circuit symbols for p-n-p and n-p-n transistors?
30. Define
amplifier and amplification factor?
31. In
which bias can a zener diode can be used as voltage regulator?
32. Which
gates are called universal gates?
33. What
are intrinsic and extrinsic semiconductors?
34. What
is a p-type semiconductor? What are the majority and minority charge carriers
in it?
35. Define
modulation. Why is it necessary?
36. Mention
the basic methods of modulation?
37. Which
type of communication is employed in Mobile Phones?
38. What
is “World wide web” (WWW)?
39. What
is the phase difference between AC emf and current in the following pure
resistor, pure inductor and pure capacitor?
40. What
is transformer ratio?