What physical quantity is the same for X- rays of wavelength `10^10 m`,red light of wavelength `6800 A` and radio waves of wavelength `500 m` ?

Explanation

To determine the physical quantity that is the same for X-rays, red light, and radio waves, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Types of Waves**:
- We have three types of electromagnetic (EM) waves: X-rays, red light, and radio waves.

2. **Understand the Nature of Electromagnetic Waves**:
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