How heavy is light?

Even Einstein is not sure to give the answer that satisfies you.

If the answer is so simple, perhaps now all of us are familiar. Even for preschool children, this question is just as simple as the abc alphabet.

Instead, we are forced to use complex and half-hearted answers, like 'light is very light, but not light in normal weight '. And the answers of this type cannot be similar to the abc alphabet.

Let's start with the following question: Do photons have mass?

The photon is the smallest light unit, and they have no mass. Is it possible to extrapolate that light consists of photons, photons without mass, and therefore, light has no mass and cannot be measured?

The answer is no. Since photons have energy, and according to the classic clause of: E = mc2, an object with energy must have mass. Therefore, we are once again caught between contradictions.

However, what Einstein proved is actually energy equivalent to mass, in other words, all energy has some form of mass. Light may not have static mass, but according to Einstein's theory, they may have relative mass - the mass that occurs when an object moves.

This is also a classic example of parallel existence between mass and energy. The weight of light is not measurable, but they are always expressed as mass objects.

Therefore, the answer to the question in the title is YES and NO. Does light weigh? HAVE. So how much do they weigh? DO NOT weigh them, no matter how small you use the scales. The weight you are referring to here is a form of energy of light, and if you are thinking of units like weight, sign, weight, or nest, hopefully this answer will not disappoint you.