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प्रश्न
Identify the part of the electromagnetic spectrum used in (i) radar and (ii) eye surgery. Write their frequency range.
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उत्तर
Microwaves are used for the ‘Radar’ system. The frequency range of microwaves is from 1 GHz to 2 GHz and
(ii) Ultraviolet rays (UV rays) are used in eye surgery. The frequency range of UV rays are from 1015 to 1017 Hz
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