# Physics – Important Question Bank for Madhya Pradesh HSSC 12th (HSC) Board Exam 2017

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After the tremendous success of our last year Important Question Bank for Madhya Pradesh HSSC (HSC) Board Exam 2016, we have also created a list of Most Important Question Bank for Madhya Pradesh HSSC 12th (HSC) Board Exam 2017  which are likely to appear in HSC Board Exams this year. To unlock the content Click on any of 3 buttons available in the box below saying “This content is Locked”. Once you click on the button the content will get unlocked on same page itself. You must click on social media button showing in below box ie Facebook, Twitter or Google Plus to unlock the content.

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1.What is dispersive power ? Prove that the dispersive power does not depend on angle of prism.

2. Establish the formula for refraction through convex spherical surface.

3. Derive Newton’s formula for focal length of convex lens. Whether this formula is true for all kinds of lens ? Write with reason

4. Find the condition for achromatic grouping (deviation without dispersion) of two prisms. Calculate resultant Deviation.

5. Describe the experiment to compare the emf’s of two primary cells by potentiometer under following headings –

(i) Labelled diagram of circuit

(ii) Principle and formula

(iii) Observation table

(iv) Two precautions.

6. Describe the experiment to determine resistance of a wire by meterbridge under following heads –

(i) Labelled diagram of circuit

(ii) Formula derivation

(iii) Observation table

(iv) Two precautions.

7. Describe an experiment to determine the unknown resistance by miter bridge under following points –

a. Labelled circuit diagram.

b. Derivation of formula

c. Precautions (any two)

8. Compare the e.m.f. of two cells on the following point by the help of potentiometer –

i. Electric circuit

ii. Derivation of formula

iii. Precautions (any two)

9. Describe the experiment of finding out internal resistance of any cell by potentiometer under following headings –

1. Electric circuit

2. Deduction of formula

3. Observation table

4. Two precautions.

10. Derive necessary condition for balancing Wheat Stone Bridge. Write the help of Kirchoff’s law

11. Which are universal gates and basic gates ? Write their symbols and truth table Obtain AND, OR and NOT gates with the help of NAND gate.

12. Describe A.C. Dynamo under following headings –

(i) Labelled diagram

(ii) Principle

(iii) Working

13. What is full wave rectifier ? Explain the use of P-N junction diode as full wave rectifier on the basis of following heads –

(i) Labelled diagram

(ii) Working

(iii) Graph of input potential and output potential with variation of time

14. State meaning of decimal and binary numbers. Define Logic gates and write types of logic gates.

15. Describe transformer under following headings –

(i) Principle

(ii) Types of transformers.

(iii) How are the transformers used in transmission of electrical energy to long distances ?

16. Clarify the operation and logic symbol of each AND and NOT gate

17. How OR and NOT gate can be obtained from NAND gate ? State symbol, Boolean formula and truth table.

18. Describe D.C. Motor on the basis of following heads –

i) Labelled Diagram,

ii) Description of main parts,

iii) Working.

19. Define self induction and self inductance. Calculate the self inductance of long solenoid.

20. Deduce expression for capacity of parallel plate condenser and state on what factors does it’s capacity depend.

21. Why is spark produced in a switch when current is switched off ? If the current of 5 ampere flowing through primary coil is decreased to zero in 1.0 second then induced e.m.f. in secondary coil is 10 volt, calculate mutual inductance

22. Explain the meaning of eddy currents ? Write any three uses of it.

23. Define impedance of alternating circuit. A resistance of 3 Ohm is connected with the coil of 4 Ohm induline reactance. Calculate the impedance of circuit

24. Write Guass theorem and deduce coulomb’s inverse square law with the help of Guass theorem.

25. What arrangements are made for making moving coil galvanometer, Dead Beat ? Calculate value of self inductance of the coil if 1.2 ampere current is flowing through the coil having 1000 turns and flux linked with it is 1.2 x 10-5 Wb.

26. What are the elements of communication system. Explain it by drawing block diagram.

27. Establish the expression of Torque acting on the electric dipole, kept in a uniform electric field.

28. Compare electrostatic force and gravitational force (any five points).

29. Prove that on connecting two isolated charged conductors there is a loss of energy. In which form it happens ?

30. Draw block-diagram of transmission and receiving of signal and write the uses of different parts.

Don’t forget to read : MUST REMEMBER THINGS on the day of Exam for HSC Students