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What oscillates in electromagnetic waves...

What oscillates in electromagnetic waves? Are these waves transverse or longitudinal?

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BINA LIBRARY-ELEMENTS OF PHYSICS ii-EXERCISE
  1. Name the part of electromagnetic spectrum which is suitable for radar ...

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  2. Write down the expression of velocity of electromagnetic wave in free ...

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  3. What oscillates in electromagnetic waves? Are these waves transverse o...

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  4. Name the characteristics of e.m waves that (i) increases, (ii) remains...

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  5. Write the relationship between amplitudes of electric and magnetic fie...

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  6. Which part of the e.m. spectrum has largest penetrating power?

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  7. Arrange in descending order of wavelength gamma-rays, x-rays and visib...

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  8. Name the e.m. radiations used for studying crystal structure of solids...

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  9. What is the ratio of speed of infra-red rays and ultraviolet rays in v...

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  10. How does a charge 'q' oscillating at certain frequency produce electro...

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  11. Write down the four Maxwell's equations.

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  12. When a boat is moving in the river, does the water offer force of fric...

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  13. What are x-rays? State two important uses of it.

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  14. Explain qualitatively that an e.m. wave can propagate without material...

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  15. What is the wavelength range of gamma-rays ? State two uses of gamma-r...

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  16. State various uses of radiowaves.

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  17. Why does friction increase if the two surfaces are pressed ?

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  18. Give three examples to show that friction is increased deliberately

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  19. What are microwaves?

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  20. The electric field vector of a plane e.m. wave oscillates with frequen...

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