Question 140 of 165
Match List-I with List-II :
$\begin{array}{|c|c|c|c|}
\hline & \text { List-I } & & \text { List-II } \\
\hline & \text { EM-Wave } & & \text { Wavelength Range } \\
\hline \text { (A) } & \text { Infra-red } & \text { (I) } & \lt 10^{-3} \mathrm{~nm} \\
\hline \text { (B) } & \text { Ultraviolet } & \text { (II) } & 400 \mathrm{~nm} \text { to } 1 \mathrm{~nm} \\
\hline \text { (C) } & \text { X-rays } S & \text { (III) } & 1 \mathrm{~mm} \text { to } 700 \mathrm{~nm} \\
\hline \text { (D) } & \text { Gamma rays } & \text { (IV) } & 1 \mathrm{~nm} \text { to } 10^{-3} \mathrm{~nm} \\
\hline
\end{array}$
Show answer and solution
Answer: (A) (A)-(III), (B)-(II), (C)-(IV), (D)-(I)
Infrared is the least energetic thus having biggest wavelength gamma rays are most energetic thus having smallest wavelength .