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: Understand the Task
The objective is to order electromagnetic radiation types by increasing frequency. Higher frequency corresponds to higher energy and shorter wavelength.

Step 3: Analyze the Spectrum
The electromagnetic spectrum, from lowest to highest frequency (longest to shortest wavelength), is:

1. (B) Radio waves: Lowest frequency.
2. (A) Microwaves: Higher frequency than radio waves.
3. (E) Infrared radiation: 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.

The ascending order of frequency is: Radio-wave → Micro-wave → Infrared radiations → UV Rays → Gamma Rays.

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