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19th November 2014, 11:48 AM
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| Re: CBSE Class 12 Physics Exam Question Paper
Here is the list of few questions of CBSE Class 12 Physics Exam Question Paper which you are looking for . Q1. An electric dipole of dipole moment 20, X 10-6 Cm is enclosed by a closed surface. What is the net flux coming out of the surface? 1 Q2. An electron beam projected along +X-axis, experiences a force due to a magnetic field along the +Y-axis. What is the direction of the magnetic field? 1 Q3. The power factor of an A.C. circuit is 0.5. What will be the phase difference between voltage and current in this circuit? 1 Q4. Electrons are emitted from a photosensitive surface when it is illuminated by green light but electron emission does not take place by yellow light. Will the electrons be emitted when the surface is illuminated by (i) red light, and (ii) blue light. 1 Q5. What should be the length of the dipole antenna for a carrier wave of Frequency 3 X 1O8 Hz? 1 Q6. Define 'electric line of force' and give its two important properties.       |