Three waves A,B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respectively are to be transmitted from one place to another.Which of the following is the appropriate mode of communication?

Options

A. A is transmitted via space wave while B and C are transmitted via sky wave
B. A is transmitted via ground wave, B via sky wave and C via space wave
C. B and C tranmitted via ground wave while A is trasnmitted via sky wave
D. B is transmitted via ground wave while A and C are transmitted via space wave.

Explanation

To determine the appropriate mode of communication for the three waves A, B, and C with frequencies 1600 kHz, 5 MHz, and 60 MHz respectively, we need to analyze the characteristics of each frequency range and the corresponding modes of communication.

### Step-by-Step Solution:

1. **Identify the Frequency Ranges**:
- Wave A: 1600 kHz (1.6 MHz)
- Wave B: 5 MHz
- Wave C: 60 MHz

2. **Determine the Modes of Communication**:
- **Ground Wave**: Typically used for frequencies below 2 MHz. Ground waves can travel along the surface of the Earth and are suitable for short-range communication.
- **Sky Wave**: Frequencies between 2 MHz and 30 MHz can be reflected by the ionosphere, making them suitable for long-distance communication.
- **Space Wave**: Frequencies above 30 MHz are generally used for line-of-sight communication, such as television and microwave transmissions.

3. **Assign Each Wave to a Mode**:
- **Wave A (1600 kHz)**: This frequency is below 2 MHz, so it is suitable for **ground wave** transmission.
- **Wave B (5 MHz)**: This frequency is between 2 MHz and 30 MHz, making it suitable for **sky wave** transmission.
- **Wave C (60 MHz)**: This frequency is above 30 MHz, making it suitable for **space wave** transmission.

4. **Conclusion**:
Based on the analysis, we conclude that:
- Wave A (1600 kHz) is transmitted via **ground wave**.
- Wave B (5 MHz) is transmitted via **sky wave**.
- Wave C (60 MHz) is transmitted via **space wave**.

Thus, the correct answer is that A is transmitted via ground wave, B via sky wave, and C via space wave.

### Final Answer:
The appropriate mode of communication is:
**Option 2**: A is transmitted via ground wave, B via sky wave, and C via space wave.