Physics Sample Question paper 

Q.1 What do you mean by Dynemo? Describe it on following points –

1. Labelled diagram

2. Working

3. Application.

2. Describe LC circuit on following points –

1. Resultant potential difference

2. Impedance

3. Average power accumulation

4. Expression for resonant freuency.

3. Describe pivoted type galvanometre on following points-

1. Labelled diagram

2. Principle

3. Changing method it into ammetre

4. Changing method it into volt metre

4. Write working of CE NPN amplifier with electric circuit diagram

5. Deduce an expression for magnetic field intensity of current carring circular coil.

1. When point is at its axis

2. When point is its centre

6. Write full wave rectifive made from PN junction diode on following points

1. Electric circuit diagram

2. Working procedure

3. INput and output signal

7. Deduce an expression for capacity of parallel plate condensor when medium between both plate is of dielectric constant ‘K’. Write factor’s effecting its capacity.

8. Deduce an expression for electric field intensity of uniformly charged spherical conductor by Gauss theorem.

1. Outside spherical conductor

2. Inside spherical conductor

3. On surface of spherical conductor

9. Write TanA deflection method of comparison of magnetic moment of two magnets by deflection magneto metre on following points.

1. Adjustment of apparatus

2. Labelled diagram

3. Formula

4. Two precautions.

10. Write sum and difference method of comparison of magnetic moments of two magnets with vibrational magneto metre on following points –

1. Principle and formulae

2. Characteristics

3. Demerits

4. Two precautions.

11. What is optical fibre? Write its working and two application

12. What is co-axial cable? Write its 3 advantages and three limitations.

13. The distance between two slit is 1 mm and its distance from screen is 1 metre, then find out fringe width if the wave length of incident light is 500 nano metre

14. If the ratio of intensities of two light sources are 9 : 16. Then find its ratio of maximum and minimum intensties.

15. Deduce an expression for lens maker’s formula for thin lens with diagram.

16. Describe displacement method of focal length of convex lens on following points –

1. Labelled diagram

2. Derivation of formulae used

17. Write four differences between telescope and Galilean telescope

18. Write four differences between dispersion without deviation and Deviation without dipersion.

19. Define modulation and mention its types

20. Explain light-electric effect by stating the light electric equation as proved by Eiensteine.

21. Write the three laws of Heat production as explained by joule

22. A magnet oscillates 30 times per minutes in earths magnetic field. If the field is doubled then find the change in time period.

23. Explain the current advantage for PNP Transistor by common emitter configuration and write its formula.

24. Mention 2 differences between emf and potential difference.

24. What is electro magnetic wave? writes its four characteristics.

25. A bar magnet having pole strength m, magnetic moment m and time period T is divided into two equal parts perpendiculary to length then find its pole strength, magnetic moment and Time period of each part.

26. Write truth table of OR gate.

27. What is Seeback series? Write its four characteristics.

28. Find the wavelength of photon of 1 eV energy.

29. Write four differences between dispersion without deviation and Deviation without dipersion.

30. What is self induction? Write its one example.

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