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Write the following radiations in a desc...

Write the following radiations in a descending order of their frequencies: red light, X-rays, microwaves, radio-waves.

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Electromagnetic Waves-EXERCISE
  1. Write the following radiations in ascending order of wavelength microw...

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  2. Write the following radiations in an ascending order in respect of the...

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  3. Write the following radiations in a descending order of their frequenc...

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  4. Arrange the following radiations in the descending order of wavelength...

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  5. What do you mean by displacement current ?

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  6. Draw the shape of electromagnetic waves.

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  7. Are matter waves, electromagnetic ? Write yes or no.

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  8. ..........was the first scientist who produced electromagnetic waves i...

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  9. ..........was the first scientist who produced electromagnetic waves i...

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  10. Arrange the following electromagnetic (e.m.) radiations in the increas...

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  11. What are electromagnetic waves ? Write four characteristics of these w...

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  12. What are electromagnetic waves ? Write four characteristics of these w...

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  13. What are electromagnetic waves ? Write four characteristics of these w...

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  14. What is displacement current?

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  15. Define Green House effect.

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  16. What are microwaves? give their any one use.

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  17. State any four properties of electromagnetic waves.

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  18. What are x-rays ? How do they differ from electrons ?

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  19. What are electromagnetic waves ? Write four characteristics of these w...

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  20. What are electromagnetic waves?

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