The frequency from `3xx10^(9) Hz` to `3xx10^(10)` Hz is

Options

A. High frequency band
B. Super high frequency band
C. Ultra high frequency band
D. Very high frequency band

Answer

To determine the frequency range from \(3 \times 10^9 \, \text{Hz}\) to \(3 \times 10^{10} \, \text{Hz}\), we will analyze the given frequency values and compare them with the standard frequency bands.

### Step 1: Identify the given frequency range
The given frequency range is:
- Lower limit: \(3 \times 10^9 \, \text{Hz}\)
- Upper limit: \(3 \times 10^{10} \, \text{Hz}\)

### Step 2: Convert the frequencies to gigahertz (GHz)
Since \(1 \, \text{GHz} = 10^9 \, \text{Hz}\), we can convert the given frequencies:
- Lower limit:
\[ 3 \times 10^9 \, \text{Hz} = 3 \, \text{GHz} \]
- Upper limit:
\[ 3 \times 10^{10} \, \text{Hz} = 30 \, \text{GHz} \]

### Step 3: Compare with frequency band ranges
Now, we will compare the converted frequencies with known frequency bands:
- **High Frequency (HF)**: \(3 \, \text{MHz} \) to \(30 \, \text{MHz}\) (or \(3 \times 10^6 \, \text{Hz}\) to \(3 \times 10^7 \, \text{Hz}\))
- **Very High Frequency (VHF)**: \(30 \, \text{MHz}\) to \(300 \, \text{MHz}\) (or \(3 \times 10^7 \, \text{Hz}\) to \(3 \times 10^8 \, \text{Hz}\))
- **Ultra High Frequency (UHF)**: \(300 \, \text{MHz}\) to \(3 \, \text{GHz}\) (or \(3 \times 10^8 \, \text{Hz}\) to \(3 \times 10^9 \, \text{Hz}\))
- **Super High Frequency (SHF)**: \(3 \, \text{GHz}\) to \(30 \, \text{GHz}\) (or \(3 \times 10^9 \, \text{Hz}\) to \(3 \times 10^{10} \, \text{Hz}\))

### Step 4: Determine the correct frequency band
The frequency range from \(3 \, \text{GHz}\) to \(30 \, \text{GHz}\) falls within the **Super High Frequency (SHF)** band.

### Conclusion
Thus, the frequency from \(3 \times 10^9 \, \text{Hz}\) to \(3 \times 10^{10} \, \text{Hz}\) is classified as **Super High Frequency (SHF)**.

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