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Write the relationship between amplitude...

Write the relationship between amplitudes of electric and magnetic fields in free space for e.m. wave.

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BINA LIBRARY-ELEMENTS OF PHYSICS ii-EXERCISE
  1. What oscillates in electromagnetic waves? Are these waves transverse o...

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

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

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

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

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

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

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

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  9. Write down the four Maxwell's equations.

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

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

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

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

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  14. State various uses of radiowaves.

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

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

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  17. What are microwaves?

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

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

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  20. In an e.m. wave amplitude of electric field is E0 = 60 N/C and its fre...

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