Which of the following are true? A. Speed of light in vacuum is dependent on the direction of propagation. B. Speed of light in a medium is independent of the wavelength of light. C. The speed of light is independent of the motion of the source. D. The speed of light in a medium is independent of intensity. Choose the correct answer from the option given below:
Options

Question

Which of the following are true? A. Speed of light in vacuum is dependent on the direction of propagation. B. Speed of light in a medium is independent of the wavelength of light. C. The speed of light is independent of the motion of the source. D. The speed of light in a medium is independent of intensity. Choose the correct answer from the option given below:

Options

G1 Physics · Accepted Answer

In vacuum, the speed of light is independent of propagation direction. In a material medium, speed can depend on wavelength because of dispersion. The speed of light is independent of motion of the source, and for ordinary linear media it is independent of intensity. Hence C and D are true.