# INTER PHYSICS MODEL PAPER

## Model Paper-I

**IPE March 2023 Intermediate 1st year**

**Time: 3Hrs Max marks:60**

**Section-A**

**I. Answer all the following VSAQ 10×2=20**

1. What is the discovery of CV Raman?

2. Express unified atomic mass unit in kg

3. Give an example where the velocity of an object is zero but it’s acceleration is not zERO

4. A = I+J what is the angle between the vector and x-axis

5. What happened to the coefficient of friction if the weight of the body is doubled?

6. Is it Necessary that a mass should be present at the centre of mass of any system?

7. Why are drops and bubbles spherical?

8. Can a substance contract on heating? Give an example.

9. Define specific heat of a substance on what factors does it depend?

10. State Boyles law and Charles law

**Section-B**

**II. Sir any SIX of the following SAQs. 6×4=24**

11. Show that the maximum height reached by a projectile launch at an angle 45° is one quarter

of its range

12. Mention the methods used to decrease friction

13. Define vector product. Explain the properties of vector product with two examples.

14. What is Escape velocity? Obtain and Expression for it.

15. Describe the behaviour of a wire under gradually increasing load?

16. In What way is the anomalous behaviour of water advantageous to aquatic animals?

17. State and explain first law of thermodynamics.

18. Four molecules of a gas have speeds 1, 2, 3 and 4 km/s. Find RMS speed of the gas molecule.

**Section-C**

**III. Answer any TWO of the following LAQs 2×8=16**

19. a) state and prove law of conservation of energy in case of freely falling body.

b) A machine gun fires 360 bullets per minute and each bullet travels with a velocity of 600

m per second if the mass of each bullet is 5 grams. Find the power of the machine gun

20. Show that the motion of a simple pendulum is simple harmonic and hence derive an equation for its time period .what is second pendulum.

21. State Second law of thermodynamics.How is heat engine different from a refrigerator.

## Model Paper – I I

**Section-A**

**I. Answer all the following VSAQ’s. 2×10=20**

1. What is the contribution of S.Chandrasekhar to physics?

2. Distinguish between accuracy and precision

3. Forces of magnitudes 3 units and 5 units act at 60° with each other what is the magnitude of their resultant?

4. Can the coefficient of friction be greater than one?

5. We Cannot open or close the door by applying force at hinges. why?

6. A copper wire of 1 mm diameter is stretched by applying a force of 10N. Find the stress in the wire.

7. Give an expression for the excess pressure in a liquid drop.

8. Why gaps are left between rails on a railway track?

9. State wiens displacement law?

10. Define mean free path

**Section-B**

**II. Answer any SIX of the followingSAQs 6×4=24**

11. A man runs across the roof of a tall building and jumps horizontally on to the roof of an

adjacent building.If his speed is 9 m/s and the horizontal distance between the building is 10m and the height difference between the roof is 9m will be able to land on the next building take g=10m/s^2.

12. If |a+b|=|a-b| prove that the angle between a and b is 90°.

13. State the Laws of rolling friction.

14. Define angular velocity (w).Derive V=rw

15. What is a geostationary satellite? state its uses.

16. define strain and explain the types of strain.

17. Explain Celsius and Fahrenheit scales of temperature obtain the relation between Celsius

and Fahrenheit states of temperature.

18. Compare isothermal and adiabatic process.

**Section-C**

**III. Answer anyTWO of the followingLAQ’s 2×8=16**

19. What are collisions? Explain the possible types of collisions? Develop that theory of one

dimensional elastic collision.

20. State and explain Newton’s law of cooling. State the conditions under which Newton’s law of cooling is applicable.A body cools down from 60° to 50° in 5 min and to 40° in another 8 min.Find the temperature of the surroundings.

21. Describe the working of Carnot engine obtain an expression for its efficiency.

## Model Paper-I

**IPE March 2023 Intermediate 2nd year**

**Time:3Hrs Max marks:60**

**Section- A**

**I. Answer all the following VSAQ’s.** **2×10=20**

1. What is myopia.How can it be corrected.

2. Distinguish between ammeter and voltmeter.

3. Define magnetic declination.

4. A transformer converts 200 V AC into 2000V AC.Calculate the number of turns in the secondary if the primary has 10 turns?

5. Give two uses of infrared rays?

6. A circular coil of radius r having N turns carries a current i. what is its magnetic moment.

7. state Heisenberg’s uncertainty principle.

8. What are intrinsic and extrinsic semiconductors.

9. What is world wide web (WWW)?

10. What are the basic blocks of a communication system?

**Section -B**

**II. AnsweranySIX of the following SAQ’s 6×4=24**

11. With a neat labelled diagram explain the formation of image in a simple microscope?

12. Explain Doppler effect in light. Disting uish between red shift and blue shift.

13. Derive an expression for the intensity of the electric field at a point on the equatorial plane of an electric dipole.

14. Derive an expression for the capacitance of a parallel plate capacitor.

15. State and explain Biot-savart law.

16. Describe the ways in which Eddy currents are used to advantage.

17. What are the limitations of Bohr’s theory of hydrogen atom.

18. Distinguish between half wave and full wave rectifiers.

**Section-C**

**III. Answer anyTWO of the following LAQ’s 2×8=16**

19. Explain the formation of stationary waves in stretched strings and hence deduce a laws of transverse wave in stretched string.

20. State kirchoff’s law for an electrical network.Using these laws deduce the condition for balance in a wheatstone bridge.

21. Explain the principle and working of a nuclear reactor with the help of a labelled diagram.

## Model Paper II

**Section – A**

**I. Answer all the following VSAQ’s 2×10=20**

1. Define ‘power’ of a convex lens.what is its unit.

2. A small angle the prism of 40° deviates a ray through 2.48°.Find the refractive index of the prism.

3. How many electrons constitute 1C of charge

4. State ohm’s law and write its mathem atical form.

5. What is a phenomena involved in the working of a transformer.

6. If the wavelength of electromagnetic radiation is doubled what happens to the energy of photon.

7. State Heisenberg uncertainty principle.

8. What is an N type semiconductor?what are the majority and minority charge carriers in it?

9. What is Sky wave propagation.

10. Mention the basic methods of modulation.

**Section -B**

**II. Answer anySIXof thefollowing SAQ’s 6×4=24**

11. Explain the formation of mirage.

12. Derive an expression for the intensity at a point where interference of light occurs.Arrive the conditions for maximum and zero intensity.

13. Define intensity of electric field at a point.Derive an expression for the intensity due to a point charge?

14. Derive an expression for the electric potential due to a point charge.

15. Derive an expression for the magnetic induction at a point on the axis of a current carrying circular coil using biot savart law.

16. Obtain an expression for the EMF induced across a conductor which is moved in a uniform magnetic field which is perpendicular to the plane of motion.

17. Describe the Rutherford atom of model what are the drawbacks of this model?

18. What is photo diode? Explain its working with a circuit diagram and draw its V-I characteristics.

**Section-C**

**III. Answer anyTWO of the following LAQ’s 2×8=16**

19 What is Doppler effect? Obtain an expre ssion for the apparent frequency of sou nd heard when the source is in motion with respect to an observer at rest.

20. States the working principle of potent iometer. Explain with the help of circuit diagram how the EMF of two primary cells are compared by using the potentiometer?

21. What is radioactivity? State the laws of radioactive decay. Show that radioa ctive decay is exponential in nature?

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