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A wave has wavelength 50 A. (a) Name the...

A wave has wavelength 50 A. (a) Name the wave. (b) State its speed in vacuum. (c) State its one use.

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(a) X-ray, (b) `3 xx 10^(8) ms^(-1)` (c) in detection of fracture in bones
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ICSE-SPECTRUM-EXERCISE B
  1. (a) Arrange the following radiations in the order of their increasing ...

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  2. A wave has a wavelength 10-3 nm. (a) Name the wave. (b) State its one ...

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  3. A wave has wavelength 50 A. (a) Name the wave. (b) State its speed in ...

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  4. (a) Name the high energetic invisible electro magnetic wave which help...

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  5. State the name and the range of wavelength of the invisible electromag...

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  6. Name three radiations and their wavelength range which are invisible a...

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  7. Give the range of wavelength of the electromagnetic waves visible to u...

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  8. Name the region just beyond (i) the red end, and (ii) the violet end, ...

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  9. What do you understand by the invisible spectrum ?

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

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

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

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

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

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

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

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

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

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

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

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