Which form of UV-radiation is allowed to pass | vedclass

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Question

(A) $UV-A$ radiation has the longest wavelength,ranging from $320-390\, nm$,and is the least harmful form of $UV$ radiation.Because of its longer wave

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$UV-A$

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(A) $UV-A$ radiation has the longest wavelength,ranging from $320-390\, nm$,and is the least harmful form of $UV$ radiation.Because of its longer wavelength,it is not absorbed by the ozone layer and is allowed to pass through to reach the Earth's surface.In contrast,$UV-B$ and $UV-C$ are largely absorbed by the ozone layer,with $UV-C$ being the most harmful.

Which form of $UV-$radiation is allowed to pass through ozone and reach the earth surface?

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