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प्रश्न
Identify the part of the electromagnetic spectrum used in (i) radar and (ii) eye surgery. Write their frequency range.
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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