Light Is Without Mass,so How Can Gravity Have an Effect

question 35

Multiple Choice

Light is without mass,so how can gravity have an effect on light?

• A)The space through which the light passes is curved.
• B)Photons actually have a very small mass,so gravity does have an effect on them.
• C)When light interacts with particles,it loses some energy,and thus takes on some mass.
• D)Gravity has no effect on light.

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Definitions:

Radiation

The release or conveyance of energy as waves or particles across space or within a material medium.

Archaean Eon

The period of Earth’s history from the formation of the crust approximately 4 billion years ago, until 2.5 billion years ago; life originated during the Archaean.

Oceanic Trenches

Deep, narrow depressions in the ocean floor, formed by the subduction of one tectonic plate under another.

Polar Regions

Areas surrounding the Earth's geographical poles, characterized by extreme cold and seasonal variations in daylight.