Classification

Directions to SolveIn each of the following questions, four words have been given out of which three are alike in some manner, while the fourth one is different. Choose the word which is different from the rest.

Choose the word which is different from the rest.

A Infrared Rays

B Radio waves

C X-rays

D Ultraviolet Rays

ANS:B - Radio waves

Explanation: All except Radio waves are short wavelength radiations.

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