A) Light cannot travel in a vacuum because it travels slower when the light source is moving. B) Light cannot travel in a vacuum because the light source is stationary. C) The speed of light, traveling in a vacuum, will not change if the light source is moving. D) Light traveling in a vacuum changes speeds when the light source moves.
Wow, I regret answering your question because you spam. Good on you, you make this world a better place by exploiting your rights and not actively thinking/paying attention to other people like physics teachers when they teach you things like how light behaves relativistically, which explains many things about our wonderful world, even though they spent many years to gain mastery on such knowledge!
question 3: The electromagnetic spectrum, so as of increasing frequency and reducing wavelength, contains radio waves, microwaves, infrared radiation, seen gentle, ultraviolet radiation, X-rays and gamma rays.
OK Light travels from the stars to the earth through he vacuum of space so AB are out Also scientists have measured the speed of light of stars traveling towards and away from the earth at fantastic speeds and always get exactly the same answer. Determining that the speed of light is constant.