Question

Match List I with List II

List I: Frequency Range	List II: Types of Waves
(I) 1 × 1016 − 3 × 1021 Hz	(D) γ-rays
(II) 1 × 109 − 3 × 1011 Hz	(B) Microwaves
(III) 1 × 108 − 5 × 1022 Hz	(A) X-rays
(IV) 5 × 105 − 109 Hz	(C) Radio waves

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

Hint:

Different regions of the electromagnetic spectrum are characterized by their frequency ranges. Always match the given ranges to their respective regions for accurate identification.

Answer 1

The Correct Option is C

The electromagnetic spectrum is divided into different regions based on frequency ranges. Let's match the entries: - X-rays (A) have frequencies in the range of \( 1 \times 10^{16} \, \text{Hz} \) to \( 3 \times 10^{21} \, \text{Hz} \), matching with List II entry I. - Microwaves (B) have frequencies in the range of \( 1 \times 10^{9} \, \text{Hz} \) to \( 3 \times 10^{11} \, \text{Hz} \), matching with List II entry II. - Radiowaves (C) have frequencies in the range of \( 5 \times 10^{5} \, \text{Hz} \) to \( 5 \times 10^{9} \, \text{Hz} \), matching with List II entry IV. - Gamma rays (D) have frequencies in the range of \( 1 \times 10^{18} \, \text{Hz} \) to \( 5 \times 10^{22} \, \text{Hz} \), matching with List II entry III. Thus, the correct answer is: \[ \text{A-I, B-II, C-IV, D-III} \]