Correct order of wavelength of radiowaves, microwaves, xrays, visible rays

Options

A. xray`lt`visible`lt`microwaves`lt`radiowaves
B. visible'lt`x-ray`lt` radiowaves'lt`microwaves
C. microwaves`'lt`xray'lt`radiowaves'lt`visible
D. none

Answer

To determine the correct order of wavelengths for radio waves, microwaves, X-rays, and visible rays, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Electromagnetic Spectrum**: The electromagnetic spectrum consists of various types of electromagnetic waves arranged in order of increasing frequency and decreasing wavelength. The general order from longest wavelength to shortest wavelength is:
- Radio Waves
- Microwaves
- Infrared
- Visible Light
- Ultraviolet
- X-rays
- Gamma Rays

2. **Identify the Wavelengths**:
- **Radio Waves**: These have the longest wavelengths, typically ranging from about 1 millimeter to 100 kilometers.
- **Microwaves**: These have shorter wavelengths than radio waves, generally from about 1 millimeter to 1 meter.
- **Visible Light**: This is the light visible to the human eye, with wavelengths ranging from approximately 400 nanometers (violet) to 700 nanometers (red).
- **X-rays**: These have much shorter wavelengths, typically ranging from about 0.01 to 10 nanometers.

3. **Arrange the Waves by Wavelength**: Based on the above information, we can arrange these waves in order of their wavelengths from longest to shortest:
- Radio Waves (longest)
- Microwaves
- Visible Light
- X-rays (shortest)

4. **Conclusion**: The correct order of wavelengths from longest to shortest is:
- Radio Waves > Microwaves > Visible Light > X-rays

### Final Answer:
**Radio Waves > Microwaves > Visible Rays > X-rays**

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