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An electromagnetic wave Y1, has a wavele...

An electromagnetic wave `Y_1`, has a wavelength 1 cm while other electromagnetic wave `Y_2` has a frequency of `10^15Hz`. Name these two types of waves and write one useful application for each.

Text Solution

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`Y_1` is micromove: It is used in radar communi-
cation. `Y_2` is ultravoilet rays, It is used to kill
germs in water purifier.
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