Assertion: The television signals are propagated through sky waves. Reason: Television signals have freqeuncy in the range of 1000MHz to 2000MHz range.

Options

A. a) A and R both are true and R is correct explaination of A
B. b) A is true but R is false
C. c) A is false but R is true
D. d) Both are false

Explanation

To analyze the assertion and reason provided in the question, we will break down the concepts of television signal propagation and frequency ranges.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "The television signals are propagated through sky waves."
- Sky wave propagation typically occurs when radio waves are reflected back to Earth by the ionosphere. This method is effective for frequencies in the range of about 3 MHz to 30 MHz.

2. **Understanding the Reason**:
- The reason given is that "Television signals have frequency in the range of 1000 MHz to 2000 MHz."
- Television signals indeed operate at much higher frequencies, typically ranging from 470 MHz to 890 MHz for digital television, and can extend up to 2000 MHz for certain types of transmissions.

3. **Comparing the Assertion and Reason**:
- Since television signals operate at frequencies much higher than the typical range for sky wave propagation, the assertion that they are propagated through sky waves is incorrect.
- Additionally, the reason provided states the frequency range of television signals accurately, but it does not support the assertion since these frequencies do not fall within the effective range for sky wave propagation.

4. **Conclusion**:
- Both the assertion and the reason are incorrect in the context of sky wave propagation for television signals.
- Therefore, the correct conclusion is that the assertion is false and the reason is also false.

### Final Answer:
Both the assertion and the reason are incorrect.

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