Q618
How do red and blue light differ?
A.
Blue light has a higher speed of propagation.
B.
The wavelength of red light is longer.
AnswerC.
Red light has a higher intensity.
D.
Red and blue light have different directions of polarization.
Answer: Option B
Solution
Answer: Option B
Solution:
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.