Question

which color of light has a shorter wavelength, blue or red? red blue they both have the same wavelength.

Explanation:

In the visible light spectrum, blue light has a shorter wavelength than red light. Wavelengths of visible light range from approximately 400 - 700 nanometers. Blue light typically has wavelengths around 450 - 495 nm, while red light has wavelengths around 620 - 750 nm.

Answer:

B. Blue