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What are ultraviolet radiations ? How ar...

What are ultraviolet radiations ? How are they detected ? State one use of these radiations

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ICSE-SPECTRUM-EXERCISE B
  1. Name the region just beyond (i) the red end, and (ii) the violet end, ...

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  2. What do you understand by the invisible spectrum ?

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  3. Name the radiation which can be detected by (a) a thermopile (b) a sol...

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  4. State the approximate range of wavelength associated with (a) ultravio...

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  5. Name the radiations of wavelength just (a) longer than 8 xx 10^(-7) m....

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  6. Name two electromagnetic waves of wavelength smaller than that of viol...

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  7. Give one use each of (a) microwaves, (b) ultraviolet radiations, (c) i...

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  8. Name the waves (a) of lowest wavelength, (b) used for taking photograp...

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  9. Two waves A and B have wavelength 0-01 Å and 9000 Å respectively. (a...

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  10. Name two sources, each of infrared radiations and ultraviolet radiatio...

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  11. What are infrared radiations ? How are they detected ? State one use o...

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  12. What are ultraviolet radiations ? How are they detected ? State one us...

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  13. Name three properties of ultraviolet radiations which are similar to v...

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  14. Give two properties of ultraviolet radiations which differ from visibl...

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  15. Mention three properties of infrared radiations similar to visible lig...

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  16. Give two properties of infrared radiations which differ from visible l...

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  17. Name the material of prism required for obtaining the spectrum of (a) ...

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  18. Name the radiations which are absorbed by the green house gases in the...

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  19. State one harmful effect each of the (a) ultraviolet and (b) infrared ...

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  20. Give reason for the following: (i) Infrared radiations are used for ...

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