Question

Arrange the following electromagnetic radiations in ascending order of their frequency.
(A) Micro-wave
(B) Radio-wave
(C) Gamma Rays
(D) UV Rays
(E) Infrared radiations
Choose the correct answer from the options given below:

• A. (A), (B), (C), (D), (E)
• B. (C), (D), (A), (B), (E)
• C. (B), (A), (E), (D), (C)
• D. (D), (C), (B), (A), (E)

Hint:

Use a mnemonic to remember the electromagnetic spectrum order. For example, "Raging Martians Invaded Venus Using X-ray Guns" stands for Radio, Microwaves, Infrared, Visible, Ultraviolet, X-ray, Gamma. This gives the order of increasing frequency.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
The question asks to arrange different types of electromagnetic radiation in ascending order of their frequency. Ascending frequency also means ascending energy and descending wavelength.

Step 3: Detailed Explanation:
The electromagnetic spectrum, arranged from lowest frequency (longest wavelength) to highest frequency (shortest wavelength), is as follows:
1. (B) Radio-wave: Lowest frequency. 2. (A) Micro-wave: Higher frequency than radio waves. 3. (E) Infrared radiations: Higher frequency than microwaves. 4. Visible Light (not listed) 5. (D) UV Rays (Ultraviolet): Higher frequency than visible light. 6. X-Rays (not listed) 7. (C) Gamma Rays: Highest frequency.
Therefore, the correct ascending order of frequency is Radio-wave \(\rightarrow\) Micro-wave \(\rightarrow\) Infrared radiations \(\rightarrow\) UV Rays \(\rightarrow\) Gamma Rays.

Step 4: Final Answer:
The correct sequence is (B), (A), (E), (D), (C).