JEE Main 1985 Chemistry question on Atomic Structure
Electromagnetic radiation with maximum wavelength is
A.
ultraviolet
B.
radio wave
C.
X-ray
D.
infrared
Show answer and solution
Correct option: B
Solution
Radio waves have the longest wavelengths in the electromagnetic spectrum, ranging from millimeters to thousands of kilometers. The order of decreasing wavelength is: radio waves > infrared > visible > ultraviolet > X-rays > gamma rays. Hence, radio waves have the maximum wavelength among all given options.
[1985]
Practise Atomic Structure the way it is asked
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