CBSE Class 12 Physics Sample Paper 2014 (3)

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CBSE Class 12 Physics Sample Paper 2014 (3). Revision worksheets, Sample papers, Question banks and easy to learn study notes for all classes and subjects based on CBSE and NCERT guidelines. Students and parents can download free a collection of all study material issued by various best schools in India. The study material has been carefully compiled by the best teachers in India. The students should practice the questions database to get better marks in examination. Please refer to other links for free download of high quality study material. Based on CBSE and NCERT guidelines. Based on the same pattern as released by CBSE every year. Study material for final/ term/ SA1/ SA2 Examinations conducted by various schools affiliated to Central Board of Secondary Education (CBSE) in India and abroad. CBSE Study material has been compiled to help students preparation which will helps the students to concentrate more in areas which carry more marks.

1. The magnetic field lines form closed curves. Why? 

2. What is band pass filter. 

3. How does magnifying power of a microscope change on decreasing the aperture of its objective? 

4. Name the part of Electimagnetic spectrum which is suitable for (i) Physical therapy (ii) TV communication. 

5. Why is energy distribution of β ray continuous? 

6. A point source of light is at the focus of a convex lens. What is the type of refracted wavefront? 

7. Drawn a graph showing variation of de Broglie wavelength of an electron with the variation of its momentum 

8. All the cells are identical each of emf E and internal resistance ‘r’. What is the current passing through R. 

9. What is a repeater? Explain with the help of a diagram. How does it increase the communication range. 

10. In a wire connected across a source, drift speed and electric field are v and E respectively. The wire is stretched uniformly of double the length, what will be new (i) drift speed (ii) electric field. 

11. Sketch the output wave form from an OR gate. The input A and B are shown in the figure. If the output of above OR gate is fed to a Not gate, name the gate so formed. 

CBSE Class 12 Physics Sample Paper 2014 (3)1

12. A charged particle of charge q and mass m is accelerated through potential different V befor entering a magnetic field B, perpendicular to the direction of motion. What will be the radius of circular path 


A circular coil of radius r is carrying current I. at what distance from the centre of loop on the axis magnetic field is one eight the magnetic field at the centre.

13. P and Q are long straight conductors r distance apart. N is a point in the plane of wires 4 distance away from P carrying current I. What is the magnitude and direction of current in the wire Q, so that net magnetic field at N is zero.

14. In an electiomagnetic wave propagating along + x-axis electric field vector  is Ey = 4 x 103 Cos (3 x 108 t – 1.5 x) V/m. What is (i) the frequency of emwave (ii) amplitude of magnetic field.

15. A and B are two concentric metallic spherical shell of radii a and b having charge q and Q respectively. How much work will be done in moving a test charge q0 from A to B (a < b). 

Please refer to attached file for CBSE Class 12 Physics Sample Paper 2014 (3).


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