The short wave Radio broadcasting band is

Options

A. 7 MHz to 22 MHz
B. 88 MHz to 108 MHz
C. 30 KHz to 300 KHz
D. 3 GHz to 30 GHz

Answer

To determine the shortwave radio broadcasting band, we can follow these steps:

### Step 1: Understand the Frequency Bands
The electromagnetic spectrum is divided into various frequency bands, each serving different purposes. The main bands of interest for radio broadcasting include:
- Very Low Frequency (VLF)
- Low Frequency (LF)
- Medium Frequency (MF)
- High Frequency (HF)
- Very High Frequency (VHF)
- Ultra High Frequency (UHF)
- Super High Frequency (SHF)

### Step 2: Identify the Shortwave Band
The shortwave band is typically defined as the High Frequency (HF) range, which is used for radio broadcasting over long distances.

### Step 3: Determine the Frequency Range of Shortwave
The shortwave radio broadcasting band is generally recognized to lie between:
- 7 MHz to 22 MHz

### Step 4: Analyze the Given Options
Now, let's analyze the provided options:
1. 7 MHz to 22 MHz
2. 88 MHz to 108 MHz (This is the VHF band, used for FM radio)
3. 30 KHz to 300 KHz (This is the Medium Frequency band)
4. 3 GHz to 30 GHz (This is the SHF band, used for radar and satellite communications)

### Step 5: Select the Correct Option
From the analysis, the only option that matches the shortwave radio broadcasting band is:
- **Option 1: 7 MHz to 22 MHz**

### Final Answer
The shortwave radio broadcasting band is **7 MHz to 22 MHz**.

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