McqMate
| Q. |
Visible spectrum of light has wavelength in the range |
| A. | 4000 to 7000 A |
| B. | 100 to 400 A |
| C. | 40,000 to 70,000 A |
| D. | 14,000 to 17,000 A |
| E. | 10 to 40 A |
| Answer» A. 4000 to 7000 A | |
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