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Show graphically, the variation of the d...

Show graphically, the variation of the de-Broglie wavelength `lambda` with the potential `V` through which an electron is accelerated from rest.

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-PHYSICS (Theory) [SET -I]
  1. A resistance R is connected across a cell of emf epsilon and internal ...

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  2. The permeability of magnetic material is 0.9983. Name the type of magn...

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  3. Show graphically, the variation of the de-Broglie wavelength lambda wi...

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  4. In a transistor, doping level in base is increased slightly. How will ...

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  5. Define the term 'wattles current'.

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  6. When monochromatic light travels from one medium to another, its wavel...

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  7. In the youngs double slit experiment ,the slit sepration is 1mm ,the d...

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  8. A magnetic needle free to rotate in a vertical plane parallel to magne...

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  9. Two convex lenses of same focal length but of aperture A(1) and A(2)(A...

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  10. Name the semiconductor device that can be used to regulate an irregula...

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  11. How are infrared waves produced? Why are these referred to as 'heat wa...

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  12. Draw the tramsfer characteristic curve of a base biased transistor in ...

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  13. Define modulation index. Why is it generally kept less than one ?

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  14. A conductor of length L is connected to a dc source of emf epsilon. If...

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  15. Using Gauss's law obtain the expression for the electric field due to ...

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  16. An electron and a photon each have a wavelength 1.00 nm. Find (i) ...

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  17. Draw a schematic diagram showing the (i) ground wave (ii) sky wave and...

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  18. Describe Young's double slit experiment to produce interference patter...

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  19. (a) Describe briefly, with the help of suitable diagram, how the tran...

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  20. State the law of radioactive decay. Plot a graph showing the number (N...

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