Which of the following is the correct arrangement of the electromagnetic spectrum in the increasing order of frequency?

Options

A. Microwaves, infrared, radio waves, visible light, X-rays
B. Radio waves, microwaves, infrared, visible light, X-rays
C. X-rays, visible light, infrared, microwaves, radio waves
D. Microwaves, radio waves, infrared, visible light, X-rays

Answer

To solve the question regarding the correct arrangement of the electromagnetic spectrum in increasing order of frequency, we can follow these steps:

### Step 1: Understand the Electromagnetic Spectrum
The electromagnetic spectrum consists of various types of electromagnetic waves, which are arranged according to their frequency and wavelength. The frequency of electromagnetic waves increases as we move from radio waves to gamma rays.

### Step 2: Identify the Frequency Ranges
Here are the frequency ranges for the types of waves mentioned in the question:
- **Radio Waves**: Less than \(10^9\) Hz
- **Microwaves**: \(10^9\) Hz to \(10^{12}\) Hz
- **Infrared**: \(10^{12}\) Hz to \(10^{14}\) Hz
- **Visible Light**: \(10^{14}\) Hz to \(10^{15}\) Hz
- **X-Rays**: \(10^{15}\) Hz to \(10^{20}\) Hz

### Step 3: Arrange the Waves in Increasing Order of Frequency
Based on the frequency ranges:
1. **Radio Waves** (less than \(10^9\) Hz)
2. **Microwaves** (\(10^9\) Hz to \(10^{12}\) Hz)
3. **Infrared** (\(10^{12}\) Hz to \(10^{14}\) Hz)
4. **Visible Light** (\(10^{14}\) Hz to \(10^{15}\) Hz)
5. **X-Rays** (\(10^{15}\) Hz to \(10^{20}\) Hz)

### Step 4: Write the Correct Order
The correct order of the electromagnetic spectrum in increasing frequency is:
- Radio Waves
- Microwaves
- Infrared
- Visible Light
- X-Rays

### Step 5: Choose the Correct Option
From the options provided, the correct arrangement is:
- **B: Radio Waves, Microwaves, Infrared, Visible Light, X-Rays**

### Final Answer
The correct option is **B**.

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