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randy23
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Do concentrated forms of light, such as a laser, have mass?
No, light is a form of energy and does not have mass. This concept is known as the "mass-energy equivalence", where energy and mass are interchangeable.
A laser is not a physical object and therefore does not have mass. It is a beam of concentrated light energy.
No, gravity is a result of the curvature of space-time due to the presence of mass. Since a laser does not have mass, it cannot create gravity.
While light itself does not have mass, it does have energy. According to Einstein's theory of general relativity, energy and mass are interchangeable, and therefore light can be affected by gravity.
Technically, yes. A laser could have mass if it is made up of particles with mass, such as photons. However, the overall mass of the laser would still be extremely small, as individual photons have very little mass.