A. Blue light has a higher speed of propagation.
B. The wavelength of red light is longer.
C. Red light has a higher intensity.
D. Red and blue light have different directions of polarization.
✅ The correct answer is option B.
Red light has a slightly longer wavelength than blue light. Red light (at one end of the visible spectrum) has a longer wavelength than blue light.
Red light has a slightly longer wavelength than blue light. Red light (at one end of the visible spectrum) has a longer wavelength than blue light.