What is the wavelength of visible spectrum:
Correct answer: B. 3900-7600A
- A. 1300-3000A
- B. 3900-7600A
- C. 7800-8000A
- D. None of these
Explanation
Visible light has wavelengths of approximately 3900 to 7600 angstroms, equivalent to about 390 to 760 nanometres. Ultraviolet lies below this range and infrared lies above it.
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