In which of the following groups are the radiations arranged in the decreasing order of their wavelength?
A. Radio waves, gamma rays, \(X\) - rays B. Radio waves, \(X\) - rays, gamma rays C. X - rays, gamma rays, radio waves D. gamma rays, \(X\) - rays, radio waves
Correct Answer: B
Explanation
Radio waves \(X\) - rays and gamma rays Radio wave \(>\) infrared \(>\) visible light \(>\) ultraviolet \(> X\) - rays \(>\) Gamma rays (shortest wavelength) \(\underset{\begin{array}{l}R<I<V<U<X<G \\ \text { incrcasing frequency } \\ \text { decreasing wavelength }\end{array}}{\longrightarrow}\)
