MCQOPTIONS
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MCQOPTIONS
| 1. |
Electromagnetic spectrum contains: |
| A. | Gamma rays (wave length < 10⁻¹⁰ m) |
| B. | Ultraviolet rays (wave length < 10⁻⁶ m) |
| C. | Infrared rays (wave length < 10⁻⁴ m) |
| D. | All of these |
| Answer» E. | |