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Electromangnetic waves with wavelength ...

Electromangnetic waves with wavelength
(i) `lambda_1` is used in satellite communication.
(ii) `lambda_2` used to kill germs in water purifier.
`lambda_` used to detect leakage of oil in underground pipelines.
`lambda_4` used to improve visibility in runways during fog and mist conditions.
(a) Identify and name the part of e.m. spectrum to which these radiations belong.
(b) Arrange these wavelengths in ascending order of their magnitude.
(c) Write one more application of each.

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