When light travels near black hole, black hole pulls light. If black hole pulls light, then does light have mass ? [ When I searched in google that whether light have mass, it tells that light have no mass. Light, which does not have mass ( according to Einstein ) and how light is pulled by black hole ? ]
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yes it's photos are mass less and velocity is 300 million ms^-1 as we all know black hole radiate energy but which type of radiation comes from black holes. well it's nothing but gravitational waves and as we know Albert Einstein has already proved the gravitational waves in his famous theory of general relativity and gravitational waves is travel near to speed of light. so I think just because of the speed of gravitational waves light also collapse and pulled by black hole because light speed and gravitational waves speed is almost same.
But the question is what is gravitational waves is it's a wave how can it travel through the vacuum?
Well what is waves? waves is nothing but vibrations and you can say disturbance in the field for example what is electron? it's nothing but vibrations or disturbance in the field of electric
similarly Gravitational waves's medium or field is space-time and these type of waves generate by massive object like sun, neutron star and black hole it's gives curvature in the space-time just because of curvature Gravitational waves form and act on objects.
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I just hope it's helpful to you
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thnxx you so much dear .....