MCQOPTIONS
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MCQOPTIONS
| 1. |
The speed of a microwave of wavelength 5 × 10^-3 m in a vacuum is 5 × 108 m⁄s, its frequency is equal to |
| A. | 6 × 109 m⁄s |
| B. | 1.5 × 105 m⁄s |
| C. | 6 × 10^10 m⁄s |
| D. | 1.5 × 106 m⁄s |
| Answer» D. 1.5 × 106 m⁄s | |