A) X-rays
B) Ultraviolet rays
C) \[\gamma \]-rays
D) Cosmic rays
Correct Answer: D
Solution :
| The wavelength order of waves are given below: |
| Waves Wavelength (in Å) X-rays \[1\text{ }{\AA}\] to \[100\text{ }{\AA}\] Ultraviolet rays \[100\text{ }{\AA}\] to \[4000\text{ }{\AA}\] \[\gamma \]-rays \[0.001\text{ }{\AA}\] to \[\text{1 }{\AA}\] Cosmic rays up to \[\text{4}\times \text{1}{{\text{0}}^{-3}}\text{ }{\AA}\] |
| Thus, Cosmic rays have the minimum wavelength. |
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