28 questions linked to/from How can gravity affect light?
5k views

How can electromagnetic waves be affected by gravity if photons have no mass? [duplicate]

I have found answers that say that gravity interferes with the oscillating electric and magnetic fields of the waves and others that say that since gravity is a bend in space-time, in which case the ...
2k views

Is light affected by gravity? Why? [duplicate]

I would like to know if light is affected by gravity, also, I would like to know what is the correct definition of gravity: "A force that attracts bodies with mass" or "a force that attracts bodies ...
2k views

What is the speed of a Photon? [duplicate]

How fast does a Photon travel through space? And is gravity able to influence a Photon's path?
1k views

How does a Black hole attract light? [duplicate]

Please no hate for lack of knowledge: I am somewhat fascinated with the subject of black holes. However, I do not understand a concept which is constantly attributed with black holes: that a black ...
941 views

Why is light affected by gravity even though it is massless? [duplicate]

Why is light affected by gravity even though it is massless?
363 views

How much $G$ is required to bend light? [duplicate]

How much $G$ is required to bend light?. Also, please explain what happens if a powerful light beam in a vacuum is intercepted by electromagnetic fields on either sides.
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Are black holes black because of gravity or time? [duplicate]

I've always heard that black holes are black because light can't escape its intense gravity. If photons are massless how can they be influenced by gravity? Or is it time that stops (relative to a ...
150 views

What about the mass of light? [duplicate]

If light has mass, it must follow equation $m=\frac{m_0}{1-\frac{v^2}{c^2}}$. Hence must have infinite mass and must have infinite momentum. As we are not killed by the strike of light, so light must ...
185 views

Light bending by gravity? Photons are massless! [duplicate]

We know that when light passes through a black hole it bends. But I couldn't understand why? As light is composed of photons and we know that photons are massless, we also know that gravity and mass ...
112 views

Does gravity really any act on Mass? [duplicate]

This might be more of a philosophical question, But I have to put this out there. Photons as we know it have no mass but carry energy, yet gravity is able to affect light. Here is my whole dilemma. ...
79 views

Does light have mass as it is attracted through gravitational force? [duplicate]

I have heard that no one escape from the intense gravitational field of a black hole (obviously that's why it is black). And gravitational force is due to the mass having the body, no mass no gravity, ...
79 views

What happens to photons under the action of gravity? [duplicate]

Since light is affected by gravity, it seems like it is made of massive particles. So what happens to that mass when the photon is absorbed by a material?
35 views

Pulling of Light by a Black Hole? [duplicate]

We all know that light has no mass at all. Yet we say that the gravitational pull of a Blackhole within Schwarzschild radius doesn't let light to pass. If the light has no mass, how can it experience ...