Possible TEN mark Questions

 

1.      Explain the construction and the working of Van de Graaff generator.

2.      Derive an equation for the electric potential at any point due an electric dipole.

3.      Deduce the expressions for the equivalent capacitance of the capacitors connected in series and in parallel.

4.      Derive an expression for the electric field due to an infinite long straight charged wire using Gauss’s law.

5.      Derive an expression for the electric field at any point on the equatorial line of an electric dipole.

6.      Explain the construction and the working of a moving coil galvanometer.

7.      Explain the construction, working and the limitations of a cyclotron.

8.      Derive an equation of the magnetic induction at a point due to an infinitely long straight conductor carrying current.

9.      State and explain Joule’s law of heating with an experiment.

10.  A source of alternating emf is connected in series with a resistor, an inductor and a capacitor. Obtain the expressions for the impedance and the phase difference between the current and the voltage.

11.  Explain the construction and the working of the AC generator.

12.  Explain the method of inducing an emf by changing the orientation of the coil with respect to magnetic field.

13.  Explain the AC circuit containing the capacitor only .

14.  Explain the formation of Newton’s rings with a neat theory.

15.  Derive an equation for the bandwidth of interference fringes in Young’s double slit experiment.

16.  Explain the different types of emission and absorption spectra.

17.  Explain the theory of plane transmission grating.

18.  Explain J.J. Thomson’s experiment to find the specific charge of an electron.

19.  Explain Millikan’s experiment to find the charge of an electron.

20.  Derive an expression for the total energy of an electron in the n th orbit.

21.  Explain the action He – Ne laser with neat diagrams.

22.  Explain the construction and the working of Bainbridge mass spectrometer.

23.  Explain the construction and the working of the nuclear reactor with a neat diagram.

24.  Explain the altitude and the latitude effects of cosmic rays.

25.  Derive N = No e – λt .

26.  Describe the energy band structure of insulator, semiconductor and conductor.

27.  Explain an experiment to determine the characteristics of a transistor in CE configuration. Explain how the transistor parameters can be evaluated ?

28.  Explain the working of a Colpitt’s oscillator.

29.  Explain the construction and the working of a multimeter.

30.  Explain the analysis of amplitude modulated wave.

31.  Explain the action of superhetrodyne AM receiver with the help of a functional block diagram.

32.  Explain the function of vidicon camera tube.

33.  Explain the transmission and the reception of radar signals with the help of a block diagram.

 

 

FAQ

 

1.      What is an electric dipole? Derive an expression for the electric field due to an electric

 dipole at a point on its axial line.

2.      Explain the principle of a capacitor. Deduce an expression for the capacitance of a parallel plate capacitor.

3.      What is dielectric? Explain the effect of introducing a dielectric slab between the plates of a parallel plate capacitor.

4.      State Gauss law using this find an expression for electric field due to uniformly charged spherical shell at a point (i)outside the shell (ii) on the surface (iii) inside the shell.

5.      Discuss the motion of a charged particle in a uniform magnetic field. Define magnetic Lorentz force.

6.      Describe principle, construction, and working of a single phase Alternating Current generator.

7.      A source of alternating emf is connected to a series combination of a resistor R, Inductor L, Capacitor C. Calculate the current, resultant voltage and the phase angle between the current and the voltage.

8.      Discuss with theory the method of inducing e.m.f in a coil by changing its orientation with respect to the direction of the magnetic field.

9.      What is known as interference? Derive an expression for band with of interference fringes in Young’s double slit experiment.

10.  Describe the J.J Thomson method for determine the specific charge of an electron.

11.  Explain the working ruby laser with the help of energy level diagram.

12.  Describe the principle and action of a Bainbridge Mass spectrometer in determining the isotopic masses.

13.  Explain the construction and working of a Geiger Muller counter.

14.  Obtain an expression for the amount of the radioactive substance present at any moment. Obtain the relation between half life period and decay constant.

15.  Make the analysis of amplitude modulated wave. Plot the frequency spectrum and band width.

16.  With the help of a functional block diagram, explain the function of a monochrome TV receiver

17.  With the help of block diagram, explain the function of radar system.