Question

Match the LIST-I (Radiations) with LIST-II (Wavelength range): 
\[ \begin{array}{|l|l|} \hline \textbf{LIST I (Radiations)} & \textbf{LIST II (Wavelength Range)} \\ \hline A. \ \text{Gamma Rays} & I. \ 10^{-2} \ \text{meters to} \ 10^{-1} \ \text{meters} \\ B. \ \text{UV Rays} & II. \ >10^{1} \ \text{meters} \\ C. \ \text{Micro Waves} & III. \ 10^{-13} \ \text{meters to} \ 10^{-11} \ \text{meters} \\ D. \ \text{Radio Waves} & IV. \ 10^{-9} \ \text{meters to} \ 10^{-7} \ \text{meters} \\ \hline \end{array} \]
Choose the correct answer from the options given below: 
 

• A. A - III, B - IV, C - I, D - II
• B. A - II, B - I, C - IV, D - III
• C. A - I, B - III, C - II, D - IV
• D. A - III, B - IV, C - II, D - I

Hint:

Mnemonic: “Good Xylophones Use Very Interesting Musical Rhythms” → Gamma, X-ray, UV, Visible, Infrared, Microwaves, Radio.

Answer 1

The Correct Option is A

Step 1: Recall electromagnetic spectrum order.
From shortest to longest wavelength: Gamma rays<X-rays<UV<Visible light<Infrared<Microwaves<Radio waves.
Step 2: Match correctly.
- (A) Gamma Rays → $10^{-13}$ to $10^{-11}$ meters (III).
- (B) UV Rays → $10^{-9}$ to $10^{-7}$ meters (IV).
- (C) Microwaves → $10^{-2}$ to $10^{-1}$ meters (I).
- (D) Radio Waves → $>10^{1}$ meters (II).
Step 3: Verify options.
Option (A) matches correctly.
Step 4: Conclusion.
Correct match: Gamma Rays - III, UV Rays - IV, Microwaves - I, Radio Waves - II.