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What do you mean by electromagnetic spec...

What do you mean by electromagnetic spectrum?

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CHHAYA PUBLICATION-STRUCTURE OF ATOM-WARM UP EXERCISE
  1. What are electromagnetic radiations? What is their velocity in vacuum?

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  2. State the principle of formation of electromagnetic radiation.

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  3. What do you mean by electromagnetic spectrum?

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  4. What are microwaves? Why are they used in radars?

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  5. Arrannge the various types of radiations constituting the electromagne...

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  6. Arrange the following radiations in the order of their increasing freq...

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  7. How would you increase the strength of photoelectric current?

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  8. How are the following effected by the increase in intensity of the inc...

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  9. Bonellia feeds with the help of

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  10. What is photoelectric effect?

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  11. What is black body radiation ?

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  12. Out of red and blue light, which one is associated with photons posses...

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  13. Differentiate betweena quantum and a photon.

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  14. Enegy associated with X-rays is higher than that of visible light-expl...

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  15. Mention the property of electromagnetic radiation (wave nature or part...

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  16. Give examples of production of -(i) photons from electrons (ii) electr...

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  17. (i) Mention the factors affecting the kinetic energy of the photoelect...

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  18. Why are the photoelectric work functions different for differet metals...

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  19. Explain- The role of threshold frequency is photoelectric effect is in...

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  20. An electron beam on hitting a ZnS screen produces scintillations on it...

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