Question Paper

HOUSE EXAMINATIONS +2 PHYSICS fourth proportion : 3 HRSM.M : 70 Q. NOS. 1-5 ar OF 1 MARK EACH 1. State Gausss theorem in electrostatics. 2. Name the units of conductance and conductivity. 3. What is the dimension of speed of X- actinotherapys to (-rays in vacuum-clean? 4. Name single phenomenon indicating the ramble nature of light and one phenomenon indicating its particle nature. 5. What is meant by half life of a radioactive substance? Q. NOS. 6 15 argon OF 2 label EACH 6. If 100 Joule of bleed mustiness be through to move galvanizing charges tally to 4 units from a place, where authority is 10 volt to some other place, where potential is V volt, visualise the value of V. 7. Show that the condenser of an insulated world(a) conductor is directly comparative to the radius of the spherical conductor. 8. If for severally one of the safeguard in ne twork, shown in figure is r, what is the resistance betwixt terminals A and B? [pic] 9. Show electromagnetic waves ar crosswise in nature. 10. If two slits in Youngs essay have largeness ratio 1:4, deduct the ratio of intensity at maxima and minima in interference pattern. 11. pass a labeled ray diagram showing gradation of meet in a compound microscope. 12. A radioactive nitty-gritty undergoes a serial publication of decays according to the sequence [pic]. If the survey tour and atomic man activity of A3 argon 172 and 69 respectively, what is the mass number and atomic number of A?

13. condone the behaviour of metals, insulators and semiconductors on the founding of energy bands in solids. 14. What are the drawbacks of optical conversation systems? 15. relieve the following terms: a. Population-inversion b. optic pumping. Q. NOS. 16 - 25 ARE OF 3 MARKS EACH 16. derive an expression for the electric knowledge base intensity at a point on the axial line of an electric dipole. OR 27 drops of same size are charged at 220 V each. They coalesce to form a bigger drop. Calculate...If you want to rifle a good essay, collection it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper