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ayush solanki
- 21
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Photons are massless,so why does it get affected by gravity?and are neutrinos affected by gravity too?thank you.
If you drop a rock near the Earth, the acceleration imparted to the rock by gravity from the Earth is completely independent of the rock's mass. You can then estimate the impact that Newtonian gravity should have on a light beam by just saying that it's an object that is traveling at speed c.ayush solanki said:Can you suggest an advanced book to better understand it?
It is also worth noting that this is for a light beam traveling perpendicular to the gravitational field. Newtonian gravity alone would also predict the light to accelerate when traveling along the gravitational field - which is also wrong, it changes in frequency but not in speed.Chalnoth said:However, if you try doing this, you get the wrong answer. The actual deflection is twice what you would expect from Newtonian gravity alone. General Relativity predicts this extra factor of two.
Photons are particles of light that have no mass and travel at the speed of light.
According to Einstein's theory of general relativity, gravity is the curvature of space-time caused by massive objects. Photons are affected by this curvature, causing them to follow a curved path.
Photons have no mass because they are considered to be elementary particles, which means they cannot be broken down into smaller components. They are also the carriers of electromagnetic force, which is a force that does not require mass to function.
The more massive an object is, the greater its gravitational pull and the more it curves space-time. This curvature affects the path of photons, causing them to follow a curved trajectory around the object.
Yes, photons can escape the gravitational pull of black holes. However, they can be affected by the strong gravitational pull and may appear to be "bent" as they pass by the black hole.