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What is forbideen energy gap?...

What is forbideen energy gap?

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Suppose that the energy liberated in the combination of a hole-electron pair is conveted into electromagnetic radiation.If the maximum waveelngth of the radiation emitted is 630 nm,what is the width of forbbidden energy gap?

Find the maximum wavelength of electromagnetic radiation,which can create a hole-electron pair in germanium.Given that forbidden energy gap in germanium is 0.72 eV.

The energy liberated in the ecombination of hole-electron pair is converted into electromagnetic radiation. If the aximum wave length emitted is 600 nm, find the value of forbidden energy gap.

The energy liberated in the ecombination of hole-electron pair is converted into electromagnetic radiation. If the maximum wavelength emitted is 500 nm, find value of forbidden energy gap.

MODERN PUBLICATION-Solids-EXERCISE
  1. What is forbideen energy gap?

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  2. Explain the formation of energy bands in solids and hence define condu...

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  3. Draw the energy band diagram of N-type semiconductor.

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  4. Draw the energy-band diagram of p-type semiconductor.

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  5. Give the enregy band diagram for metls

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  6. Draw the energy band diagram of N-type semiconductor.

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  7. Draw the energy-band diagram of p-type semiconductor.

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  8. Draw the energy-band diagram for an insulator.

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  9. Explain the behaviour of semiconductors and insulators on the basis of...

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  10. Explain various energy bands in an atom.

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  11. On the basis of the energy band diagrams distinguish between metals, i...

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  12. Draw a labelled energy band diagram for an insulator,a conductor and a...

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  13. Draw a labelled energy band diagram for an insulator,a conductor and a...

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  14. Draw the energy-band diagram for an insulator.

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  15. On the basis of the energy band diagrams distinguish between metals, i...

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  16. What are ‘holes’? Write their characteristics.

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  17. What is doping ? Write three necessary conditions for it and two metho...

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  18. What is doping ? Write three necessary conditions for it and two metho...

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  19. What is doping? What are the necessary conditions for it? State any me...

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  20. A n-type semiconductor is:

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  21. What is an intrinsic Semi-conductor ?

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