The lower frequencies used in TV broad casting are

Options

A. 0.54 KHz to 1.6 KH, 80 MHz to 108 MH
B. 896 to 901 MHz, 0.84 to 0.9356 Hz
C. 54 MHz to 72 MHz, 76 MHz to 88 MHz
D. 174 MHz to 216 MHz, 420 MHz to 890 MHz

Answer

To solve the question regarding the lower frequencies used in TV broadcasting, we can follow these steps:

### Step 1: Understand the Frequency Range for TV Broadcasting
TV broadcasting utilizes specific frequency ranges within the radio spectrum. It is essential to know the range of frequencies that are designated for television signals.

### Step 2: Identify the Frequency Range
The typical frequency range for TV broadcasting is from 30 megahertz (MHz) to 300 megahertz (MHz). This range is categorized as space waves, which are used for transmitting television signals.

### Step 3: Analyze the Options Given
We need to evaluate the options provided in the question to identify which one falls within the correct lower frequency range for TV broadcasting.

1. **Option 1**: Frequencies below 30 MHz - This is incorrect as it is below the range used for TV broadcasting.
2. **Option 2**: Frequencies between 30 MHz and 54 MHz - This is also incorrect as it does not reach the lower limit of the TV broadcasting range.
3. **Option 3**: Frequencies between 54 MHz and 88 MHz - This is correct as it falls within the range used for TV broadcasting.
4. **Option 4**: Frequencies above 300 MHz - This is incorrect as it exceeds the upper limit of the TV broadcasting range.

### Step 4: Conclusion
Based on the analysis of the frequency ranges and the options provided, the correct answer is **54 MHz to 88 MHz**, which represents the lower frequencies used in TV broadcasting.

### Final Answer
The lower frequencies used in TV broadcasting are **54 MHz to 88 MHz**.

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