Q.

Which of the following electromagnetic radiation has higher wavelength

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a

IR-rays

b

Radio waves

c

UV-rays

d

γ-rays

answer is D.

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Detailed Solution

Increasing order of wave length is γ − rays < U.V rays < IR rays < Radio waves Radio ways having more wave length.

Energy is inversely proportional to wave length. The wavelength range of radio waves could be 1mm to 100 KM.

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Which of the following electromagnetic radiation has higher wavelength