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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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