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[QUOTE=mariammal;185368][B]Document Described : [/B]Physics Question Paper, Madhya Pradesh Question Paper
[B]
PHYSICS [/B]
Total No. of question - 16  
Time – 3 hours Max. Marks - 75

[B]Instructions  [/B]:
(1) All questions are compulsory.
(2) There are two sections - Section-A & Section-B in the question paper.
(3) Read the instructions given in the question – paper carefully & write the answers.

[URL]http://mpbse.nic.in/Model%20Que-Ans%20paper.htm[/URL]
[URL]http://mpbse.nic.in/12TH/PHYSICS/PHYSICS-1.pdf[/URL]

(4) In section-A, Question No. 1 to 4 are objective type questions each question carry 5 marks.
(5) Internal options are given in questions 5 to 16 of section-B.
(6) Question No. 5 to 11 carry 4 marks each and each answer is expected in about 75 words.
(7) Question No. 12 to 14 carry 5 marks each and each answer is expected in about 120 words.
(8) Question No. 15 and 16 carry 6 marks each and each answer is expected in about 150 words.
(9) Draw neat and labeled diagrams wherever necessary.

[B]Section-‘A’  [/B]:
(Objective type question) (5 Marks each)
1 Select the correct answer from the given options provided in every
objective type question……
(i) N / A (ii) N / A. M
(iii) N/M (iv) N.A / M
S.I. Unit of the intensity of electric field is
(i) N / A (ii) N / A. M
(ii) N/M (iv) N.A. / M
How many capacitors of F m 4 capacity each are combined to get total
capacity of F m 6 -
(a) One (b) Two
(c) Three (d) Four
The angle of dip at geomagnetic poles is -
(a) 00 (b) 450
(c) 900 (d) 1800
The range of TV signal is -
(i) 100-200 Hz (ii) 30-300 Hz
(iii) 0-100 Hz (iv) 50-100 Hz
The Principal of Optical fibre is:-
(i) scattering (ii) Reflection
(iii) Total Internal reflection (iv) Refraction

[B]Fill in the blanks  [/B]:-
The potential of earth is assumed as……………
The Resistance of thermistor…………...with the rise in temperature.
Velocity of electromagnetic waves in vaccume is……...............….
Clouds are formed in ………………layer of atmosphere.
The supperposition of audio and carrier waves is called……….....

Select the appropriate option from column B for each statement of coloumn A and the match the right pairs.:-
(A) (B)
(a) Ideal Ammeter (i) Antymony
(b) Ideal voltmetor (ii) Boron
(c) P-Type semi conductor (iii) Infinite Resistance
(d) N-Type semi conductor (iv) Silicon
(e) Intrinsic semi conductor (v) Zero Resistance
(vi) Germenium
(vii) Less resistance

[B]Write the answer in one sentence  :[/B]-
(a) Write the formula to indicate the relation between drift velocity of electron and electric current.
(b) Write the name of device which accelerates positive charged particals .
(c) What is the periodic time of Geostationary satellite?
(d) What is meant by digital signals?
(e) Define LASER?
Establish the expression for equivetent resistance of the three resistance R1, R2 and R3 connected in parallel combination
(Or)
Differentiate between electromotive force of a cell and potential difference.
(any four difference)
Establish the expression for intensity of magnetic field due to a small magnet in end-on position.
(Or)
Define the magnetic elements of earth’s magnetism and establish a relation between them.
Explain the working and principal of transformer with labelled diagram.
(Or)

Deduce the expressions of the following in an alternating LCR circuit –
State Brewster’s law. Prove that if light is incident at the angle of polarization, the reflected and refracted rays are mutually perpendicular.
Write the necessary conditions for interference of light.
The focal length of a convex lens is 10 cm. It is immersed in a liquid of
refractive index 1.75. What will be its focal length and nature then?
Define photo electric effect. State the laws of photoelectric effect.
(Or)
Derive De-Broglie’s wave length equation.
What is MODEM? Draw block diagram and explain its working.
(Or)
What is the meaning of FAX Machine? Draw a block diagram and explain its working.
64 identical charged water drops combine to form one big drop. If charge on each small drop is 10-8 coulomb and it’s radius is 1mm., find the electric potential of the big drop?
(Or)
Prove that the capacity of an isolated spherical conductor is directly
proportional to its radius. Explain the principle of condenser.
Describe the compound microscope under the following heads-
(i) Ray diagram.
(ii) Derivation for the expression of magnifying power, when image
is formed at minimum distance of distinct vision, ‘D’.
(Or)
Describe Astronomical telescope under the following heads-
(i) Ray diagram
(ii) Derivation of the expression of magnifying power when image is formed at infinity.
Describe the use of P-N junction diode as a full wave rectifier under the
following heads -
(i) Labelled circuit diagram .
(ii) Working
(iii) Graph for the variation of in put potential with the output potential.
(i) AND
(ii) NOR
Write the logic symbols and prepare the truth tables of the following
gates-
(i) AND
(ii) NOR
Describe A.C. Dynamo under the following heads –
(i) Principle
(ii) Labelled diagram
(iii) Working[/QUOTE]

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