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Name the characteristics of e.m waves th...

Name the characteristics of e.m waves that (i) increases, (ii) remains constant as one moves from radio wave to ultraviolet regions in electromagnetic spectrum

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BINA LIBRARY-ELEMENTS OF PHYSICS ii-EXERCISE
  1. Write down the expression of velocity of electromagnetic wave in free ...

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

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

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

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

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

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

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

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

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  10. Write down the four Maxwell's equations.

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

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

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

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

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  15. State various uses of radiowaves.

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

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

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  18. What are microwaves?

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

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

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