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SKY WAVE OR IONOSPHERIC PROPAGATION...

SKY WAVE OR IONOSPHERIC PROPAGATION

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Sky Wave Propagation : When the radiowaves from the transmitting antenna reach the receiving antenna after reflection in the ionoshpere, the wave propagation is called sky wave propagation
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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET I
  1. SKY WAVE OR IONOSPHERIC PROPAGATION

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  2. write the following radiations in ascending order in respect of their ...

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  3. Magnetic field lines can be entirely confined within the core of a tor...

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  4. Your are given following three lense. Which two lenses will you use as...

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  5. If the angle between the pass axis of polariser and analyser is 45^(@)...

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  6. The figure shows a plot of three curves a, b, c, showing variation of ...

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  7. what type of wavefront will emerge from (i) a point source and (ii) di...

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  8. Two nuclei have mass number in the ratio 1:2. What is the ratio of the...

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  9. A cell of e.m.f. 'E' and internal resistance 'r' is connected across a...

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  10. (i) Can two equaipotential surfaces intersect each other ? Give reason...

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  11. By what percentage will the transmission range of a T.V. tower be affe...

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  12. Derive the expression for drift velocity of free electron in terms of ...

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  13. An infinite number of charges, each of coulomb, are placed along x-axi...

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  14. A sphere S(1) of radius r(1) encloses a total charge Q. If there is ...

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  15. ATV tower has a height of 150m. By how much the height of tower be inc...

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  16. The V-I graphs of parallel and series combinations of two metallic res...

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  17. Why are high frequency carrier waves used for transmission ?

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  18. What is meant by term 'modulation' ? Draw a block diagram of a simple ...

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  19. A radioactive nucleus undergoes a series of deacy according to the sch...

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  20. A thin spherical shell of radius R has charge Q spread uniformly over ...

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