Effect of gravity on speed of light?

Question

Does gravity have any impact on the speed of light? For instance, suppose light from a distant star reaches Earth after 10 minutes. Could it be possible that due to the gravitational force of a celestial object in the path of the light, there is delay in light reaching us? What are the factors that affect the speed of light?

Answer 1

If you define gravity,in your words it must have magnetic characters,then of course the magnetic field will bend the light which has its own magnetic characters.Basicly,matter has gravitational,magnetic,electrical,therma...

We studied in high school that different types of energy are convertable

to each other.

Answer 2

1. the nearest star is the sun. Light from the sun takes a little bit more than 8 minutes to reach earth. For distant stars light takes years to reach earth.

2. the speed of light in vacuum is not influenced by gravity. Only a medium can slow down light, e.g. light is slower when moving through glass.

3. gravity has an influence on the path of light. The path of light may be curved due to gravity.

4. gravity may shift the wavelength and frequency of light. Experiments have proved that the frequency of gamma rays drops slightly when the rays move up.

Answer 3

Gravity has zero effect on the speed of light.

Light from our sun takes 8 minutes to travel to earth. A star whose light takes 10 minutes would not be very distant.

Answer 4

The speed of light (300,000 KM/S) is a universal constant, it is not impacted by the velocity of an observer (if you were going in the opposite direction it would not appear to move faster) and it is not impacted by force.

Light however, does appear to move slower through various mediums because of absorption and reemission, and it's various interactions with the substance. And though light cannot be accelerated by gravity, the path light follows can be bent.

This is mostly explained in relativity, but you might want to take a course in the subject, as that book is rather dense.