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What is the name given to the part of electromagnetic spectrum which is used for taking photographs of earth under foggy conditions from great heights ?

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MODERN PUBLICATION-ELECTROMAGNETIC WAVES-REVISION EXERCISES ( VERY SHORT ANSWER QUESTIONS)
  1. Which part of electromagnetic spectrum is detected by a human eye?

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  2. Welders wear special glass goggles ro facemask with glass window to pr...

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  3. What is the cause of the depletion of the ozone layer?

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  4. Why microwaves are used in radar not radiowaves?

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  5. What is the name given to the part of electromagnetic spectrum which i...

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  6. Which part of electromagnetic spectrum is absorbed by ozone layer?

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  7. How are radio waves produced?

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  8. Write the expression for velocity of electromagnetic waves.

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  9. Name any two properties of electromagnetic waves which are common to a...

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  10. Name the electromagnetic wave that is used to take radiograph of fract...

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  11. Write the expression for speed of light in terms of 'mu0 ' and 'epsi...

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  12. If the intensity of incident radio wave is 3 Watt/m^2,what is the pres...

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  13. What does the cross product of electric and magnetic field vectors (ve...

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  14. Which part of electromagnetic spectrum is produced in nuclear reaction...

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  15. Name any two electromagnetic waves. State any one similarity and one d...

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  16. Why a metal container should not be used in a microwave oven?

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  17. To which part of the electromagnetic spectrum does a wave of frequency...

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  18. The ozone layer on the top of the stratosphere is crucial for human su...

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  19. Mention the relative position of X-rays and gamma-rays in the EM wave ...

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  20. The frequency of an electromagnetic wave is 1.5 xx 10^(18) Hz. Calcul...

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