Question

visible light ranges in wavelength from nanometers to nanometers. 200; 700 200; 1000 400; 700 400; 1000

Explanation:

Visible light is a part of the electromagnetic spectrum. The range of wavelengths for visible light is a fundamental concept in physics (specifically optics). Wavelengths shorter than 400 nm (such as ultraviolet, X - rays, gamma rays) and longer than 700 nm (such as infrared, microwaves, radio waves) are not visible to the human eye.

Answer:

C. 400; 700