Choose the correct option relating wavelengths of different parts of electromagnetic wave spectrum.

Options

A. `lamda_("x-rays")ltlamda_("micro waves")lt lamda_("radio waves")lt lamda_("visible")`
B. `lamda_("visible")gtlamda_("x-rays")gtlamda_("radio waves")gtlamda_("micro waves")`
C. `lamda_("radio waves")ltlamda_("micro waves") ltlamda_("visible")ltlamda_("x-rays")`
D. `lamda_("visible")ltlamda_("micro waves") ltlamda_("radio waves")ltlamda_("x-rays")`

Answer

To solve the question regarding the wavelengths of different parts of the electromagnetic wave spectrum, we need to understand the order of wavelengths for various types of electromagnetic waves. Here’s a step-by-step solution:

### Step 1: Understand the Electromagnetic Spectrum
The electromagnetic spectrum consists of various types of waves, each with a different wavelength. The order from shortest wavelength to longest wavelength is crucial for this problem.

### Step 2: List the Types of Waves in Order
The correct order of the electromagnetic spectrum from shortest to longest wavelength is:
1. Gamma rays (shortest wavelength)
2. X-rays
3. Ultraviolet (UV) rays
4. Visible light
5. Infrared (IR) rays
6. Microwaves
7. Radio waves (longest wavelength)

### Step 3: Analyze the Options
Now, we will analyze the options provided in the question based on the order established above.

- **Option A**: X-rays < Microwaves < Radio waves < Visible light
- This option is incorrect because it places visible light after radio waves, which contradicts the order we established.

- **Option B**: Visible light > X-rays > Radio waves > Microwaves
- This option is also incorrect as it incorrectly states that visible light has a greater wavelength than X-rays.

- **Option C**: Radio waves < Microwaves < Visible light < X-rays
- This option is correct. It accurately reflects the increasing order of wavelengths.

- **Option D**: Visible light < Microwaves < Radio waves < X-rays
- This option is incorrect because it places X-rays after radio waves, which is not true.

### Step 4: Conclusion
Based on the analysis, the correct answer is **Option C**: Radio waves < Microwaves < Visible light < X-rays.