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Which of the following electromagnetic w...

Which of the following electromagnetic wave play an important role in maintaining the earth's warmth or average temperature through the greenhouse effect?

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MODERN PUBLICATION-ELECTROMAGNETIC WAVES-REVISION EXERCISES ( SHORT ANSWER QUESTIONS )
  1. Name the electromagnetic radiation which is used- (a) to kill cancer...

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  2. Which electromagnetic waves are used for the following purposes? (i) ...

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  3. Which of the following electromagnetic wave play an important role in ...

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  4. Name the following electromagnetic waves and arrange them in decreasin...

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  5. Light waves are transverse in nature .

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  6. What is electromagnetic spectrum? Which part of the electromagnetic s...

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  7. An electromagnetic wave of 25 MHz is travelling in X-direction, at C p...

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  8. What are electromagnetic waves? Write the equations for associated ele...

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  9. Show that for an electromagnetic wave in vacuum, at any point, at any ...

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  10. What is an electromagnetic spectrum? Arrange the given electromagnetic...

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  11. (i) Why welder wears a special glass goggles during welding with arc? ...

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  12. (a) Why are infrared waves often called heat waves? Explain. (b) Wh...

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  13. Microwave Oven

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  14. Why infrared waves are called heat waves?

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  15. Give reasons for the following: (i) Long distance radio broadcasts u...

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  16. (a) How does oscillating charge produce electromagnetic waves? (b) S...

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  17. Name the types of e.m. radiations which (i) are used in destroying can...

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  18. (a) How are electromagnetic waves produced? (b) How do you convince ...

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  19. Arrange the following electromagnetic waves in the descending order of...

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  20. Write any four characteristics of electromagnetic waves. Give two uses...

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