Which of the following has the shortest wavelength ? A) Cosmic rays B) γ rays C) Microwave rays

Explanation

To determine which of the given options has the shortest wavelength, we need to analyze the wavelength ranges of each type of radiation mentioned in the question.

### Step-by-Step Solution:

1. **Identify the Wavelength Ranges**:
- **Cosmic Rays**: The wavelength range is approximately \(10^{-14} \, \text{m}\) to \(10^{-12} \, \text{m}\).
- **Gamma Rays**: The wavelength range is approximately \(10^{-12} \, \text{m}\) to \(10^{-10} \, \text{m}\).
- **Microwave Rays**: The wavelength range is approximately \(10^{-3} \, \text{m}\) to \(10^{-1} \, \text{m}\).
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