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

Options

A. Microwaves, radiowaves, visible light , X - rays
B. Radiowaves, microwaves, infrared , visible light , X-rays
C. X-rays, visible light, infrared, microwaves, radiopwaves
D. Microwaves, infrared, radiowaves , visible light, X-rays

Explanation

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

### Step 1: Understand the Electromagnetic Spectrum
The electromagnetic spectrum consists of various types of electromagnetic waves arranged according to their frequency and wavelength. The order from highest frequency to lowest frequency is as follows:
1. Gamma rays
2. X-rays
3. Ultraviolet rays
4. Visible light
5. Infrared rays
6. Microwaves
7. Radio waves

### Step 2: Identify the Frequencies of the Given Options
The question provides the following options to arrange:
- Microwaves
- Radio waves
- Visible light
- X-rays

From the electromagnetic spectrum, we can identify the relative frequencies:
- Radio waves have the lowest frequency.
- Microwaves have a higher frequency than radio waves.
- Visible light has a higher frequency than microwaves.
- X-rays have a higher frequency than visible light.

### Step 3: Arrange the Options in Increasing Order of Frequency
Now, we can arrange the provided options in increasing order of frequency:
1. Radio waves (lowest frequency)
2. Microwaves
3. Visible light
4. X-rays (highest frequency)

### Step 4: Verify Against the Given Options
Now we can check the provided options against our arrangement:
- **Option 1**: Microwaves, Radio waves (Incorrect)
- **Option 2**: Radio waves, Microwaves, Infrared, Visible, X-rays (Correct)
- **Option 3**: X-rays, Visible (Incorrect)
- **Option 4**: Microwaves, Infrared, Radio waves (Incorrect)

Thus, the correct arrangement in increasing order of frequency is found in **Option 2**.

### Final Answer
The correct arrangement of the electromagnetic spectrum in increasing order of frequency is:
**Radio waves < Microwaves < Visible light < X-rays**

---