12 th STD Physics 3 MARK QUESTIONS - TOP 50 important QUESTIONS (PUBLIC EXAM QUESTIONS
1.Torque experienced by dipole in Uniform electric field. (Unit-1)
2.Electrostatic potential due to a point charge (1)
3.Capacitance of parallel plate capacitor (1)
4.Energy stored in parallel plate capacitor (1)
5.Capacitors in series (or) parallel (1)
6.Properties of electric field lines (1)
7.Kirchhoff's rules (2)
8.Resistors in series (or) parallel (2)
9.Derive expression for P=VI (2)
10.Various forms of expression for power (2)
11.Derive the relation between Current and Drift Velocity (2)
12.Conversion of galvanometer into Ammeter (or) voltmeter (3)
13.Magntic Lorentz force (3)
14.Force on current carrying conductor in a magnetic field (3)
15.Properties of dia, para, ferro magnetic materials (3)
16.Inducing emf by changing area of the coil (4)
17.Energy losses in a transformer (4)
18.Advantages and disadvantages of AC over DC (4)
19.Properties of electromagnetic waves (5)
20.Fraunhofer lines and use (5)
21.Uses of IR, UV, Microwaves (5)
22.Relation between f and R (6)
23.Optical path. Obtain its equation. (6)
24.Brewster's law (7)
25.Uses of polaroids (7)
26.Pile of plates (7)
27.Nicol prism (7)
28.Applications of photo cells. (8)
29.Characteristics of photons (8)
30.Properties of cathode rays (9)
31.Discuss about alpha decay (or) Beta decay (or) Gamma decay (9)
32.postulates of Bohr atom model (9)
33.Half wave rectifier (10)
34.Satellite communications and its applications (10)
35.Distinguish between avalanche breakdown and Zener breakdown (10)
36.Input and output waveforms of full wave rectifier (10)
37.Draw the circuit diagrams of CB mode (or) CE mode (or) CC mode (10)
38.Applications of capacitors (1)
39.State and explain Biot- savart law (3)
40.Short notes on Microwave, X-ray, Radiowave, Visible spectrum (5)
41.Fresnel and Fraunhofer diffraction (7)
42.What is photocell? Mention different types of photocells (8) (8)Applications of X-ray (8)
43.Variation of average binding energy with mass number using graph. Discuss its features (9)
44.Properties of nuclear forces (9)
46.State De Morgan's first and second theorem (10)
47.Transistor as a switch (10)
48.Advantages and limitations of Frequency modulation (10)
49.Methods of producing induced emf (4)
50.AC circuit containing pure resistor (4)