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Which of these is INCORRECT about the force of Gravitation ?
It cannot be shielded against.
It acts on particles having mass or even massless particles.
It always attracts and never repels.
None of the above
It is the weakest of the four fundamental force interactions – electromagnetic, nuclear, weak force and gravitation. For instance, even a small magnet is able to hold the pin against the gravitational pull of the entire Earth. Gravitation:has an infinite range, like electromagnetism but unlike strong and weak interaction; cannot be absorbed, transformed, or shielded against; always attracts and never repels.
Gravity affects anything with energy, even a massless particle.
By: kamaljeet kaur ProfileResourcesReport error
Vishal Harmalkar
Explaination given for option B is merely sufficient.
Manish Kumar Singh
Gravitation doesn't act on massless particles. If we look at its formula F = GMm/r^2 then in case of a massless particle m = 0, whole formula will become zero due multiplication. Kindly Respond
You are right that according to Newton's gravity, the force of gravity on particle that has 0 mass would be zero. However, we know that Newton's gravity is only correct under certain circumstances, we need to consider the more general law of gravity which is Einstein's General Relativity. So, Massless particles are known to experience the same gravitational acceleration as other particles as gravity affects anything with energy.
Rajamallaiah
Option d is correct these particles are known to experience the same gravitational acceleration as the other particles because they do have realistic relative istick mass which is what acts as gravity charge
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