*Question G9B10:
What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?*  

*Correct Answer is  D: 33 feet*  

### AI Response: (may contain errors)  

To determine the approximate length of a 1/2 wave dipole antenna for a frequency of 14.250 MHz, we can use the following formula:

$$
L = \frac{468}{f}
$$

where:
- $L$ = length of the dipole in feet
- $f$ = frequency in MHz

### Calculation:
For a frequency of 14.250 MHz:

$$
L = \frac{468}{14.250} \approx 32.8 \text{ feet}
$$

Rounding this value gives us approximately 33 feet, which corresponds to the correct answer.

### Explanation of the Correct Answer:
- **Correct Answer (D: 33 feet)**: This length is derived from the formula and is the correct length for a 1/2 wave dipole antenna at 14.250 MHz.

### Explanation of Incorrect Answers:
- **A: 8 feet**: This length is far too short for a 1/2 wave dipole at this frequency. It would be more appropriate for a much higher frequency.
  
- **B: 16 feet**: This length is also too short. It might be suitable for a frequency around 28.5 MHz, but not for 14.250 MHz.
  
- **C: 24 feet**: While closer than the previous options, this length is still not sufficient for a 1/2 wave dipole at 14.250 MHz. It would be more appropriate for a frequency around 21 MHz.

### Summary:
- Use the formula $L = \frac{468}{f}$ to calculate the length of a dipole antenna.
- For 14.250 MHz, the calculated length is approximately 33 feet, making option D the correct choice.