Question

According to Einstein e=mc^2 energy eauals to mass into velocity of light square... now if light is energy then what is its mass?!??!? person who answers wud be one among greatest... hit me up fast...

Answer 1

Light is composed of photons, so we could ask if the photon has mass.  The answer is then definitely "no": the photon is a massless particle.  According to theory it has energy and momentum but no mass, and this is confirmed by experiment to within strict limits.  Even before it was known that light is composed of photons, it was known that light carries momentum and will exert pressure on a surface.  This is not evidence that it has mass since momentum can exist without mass.

Sometimes people like to say that the photon does have mass because a photon has energy E = hf where h is Planck's constant and f is the frequency of the photon.  Energy, they say, is equivalent to mass according to Einstein's famous formula E = mc2.  They also say that a photon has momentum, and momentum pis related to mass m by p = mv.

Answer 2

it is simple ,when we say MASS×SPEED OF LIGHT^2

the equation states that any Any thing that have mass and travels with the speed of light quare then it will create energy




in the same way this equation will state that mass can be ceated.


but energy don't have mass and this equation states that mass and energy both can be created



here mass will be of that object that will be travelling with the speed of light