In general the wavelength of microwaves is

Options

A. more than of infrared waves
B. more than that of radiowaves
C. less than that of infrared waves
D. less than that of ultraviolet waves

Explanation

To determine the general wavelength of microwaves in relation to other types of electromagnetic waves, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Electromagnetic Spectrum**:
The electromagnetic spectrum consists of various types of waves, including radio waves, microwaves, infrared waves, visible light, ultraviolet rays, X-rays, and gamma rays. Each type of wave has a specific range of wavelengths and frequencies.

2. **Identify the Wavelength Range of Microwaves**:
Microwaves generally have wavelengths that range from approximately 1 millimeter (10^-3 meters) to 1 meter (10^0 meters). This can also be expressed in nanometers (1 meter = 10^9 nanometers), which gives a range of about 10^6 nanometers to 10^9 nanometers.

3. **Compare with Other Waves**:
- **Radio Waves**: These have longer wavelengths than microwaves, typically ranging from about 1 meter to 100 kilometers (10^0 to 10^5 meters).
- **Infrared Waves**: These have shorter wavelengths than microwaves, typically ranging from about 700 nanometers (7 x 10^-7 meters) to 1 millimeter (10^-3 meters).

4. **Determine the Correct Comparison**:
Based on the wavelength ranges:
- Microwaves have a longer wavelength than infrared waves.
- Microwaves have a shorter wavelength than radio waves.

5. **Select the Correct Answer**:
From the options provided, the correct statement is that the wavelength of microwaves is more than that of infrared waves but less than that of radio waves.

### Final Answer:
The wavelength of microwaves is **more than that of infrared waves**.

---