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How are radio waves produced?...

How are radio waves produced?

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By rapid acceleration and deacceleration of electrons in aerials.
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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET-I
  1. The angles of dip at two places are respectively 0^@ and 90^@. Where a...

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  2. A hollow metal sphere of radius 10 cm is charged such that the potenti...

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  3. How are radio waves produced?

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  4. State two characteristic properties of nuclear forces.

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  5. Two barmagnets are quickly moved towards a metallic loop connected acr...

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  6. What happens to the width of depletion layer of a p-n junction when it...

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  7. Define the term 'stopping potential' in relation to photoelectric effe...

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  8. A thin straight infinitely long conducting wire having charge density ...

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  9. Plot a graph showing the variation of coulomb force (F) versus ((1)/(r...

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  10. Write the expression for Lorentz magnetic force on a particle of charg...

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  11. If chi stands for the magnetic susceptibility of a given material, ide...

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  12. What are eddy currents ? Discuss brifly any two applications of eddy c...

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  13. What is sky wave communication Why is this mode of propagation restric...

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  14. In the given circuit assuming poiny A to at zero potential use kirchh...

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  15. What is the area of the plates of a 2 farad parallel plate air capac...

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  16. Net capacitance of three identical capacitors in series is 1 muF. Wha...

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  17. In the meter bridge experiment, balance point was observed at J with A...

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  18. A convex lens made up of glass of refractive index 1.5 is dippedin tur...

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  19. Draw a plot showing the variation of photoelectric current with collec...

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  20. The velocity of a certain monochromatic light, in a given transparent ...

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