Question

visible light spans the electromagnetic spectrum from wavelengths of approximately __ to __.
250 nm; 800 nm
275 nm; 650 nm
390 nm; 750 nm
350 nm; 875 nm

Explanation:

Visible light is a part of the electromagnetic spectrum. The range of wavelengths for visible light is approximately from 390 nm (violet - blue end) to 750 nm (red end).

Answer:

390 nm; 750 nm