answersLogoWhite

0


Best Answer

light has zero mass. Photons have zero mass.

So according to e=mc2 light must also have zero energy.

Astonishing how all these photons reach us from all the way across the universe!

But all physical things have mass

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

6mo ago

Light consists of massless particles called photons. Since photons have no rest mass, the mass of light is considered negligible. Therefore, the mass of light is typically not calculated.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you calculate the mass of light?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is a way to calculate the mass of an object when you multiply its density by what?

You can calculate the mass of an object by multiplying its density by its volume. The formula to calculate mass is: mass = density x volume.


How do you calculate a mass of am atom?

To calculate the atomic mass of an element, add up the mass of protons and nuetrons.


Is light massless?

Photons have no invariant mass (the hypothetical mass they would have if they weren't moving, which cannot happen). So in that sense, light is massless. However, light (and individual photons) have energy, and we know from Einstein's famous formula that energy is related to mass. (A different formula E=hv relates energy to frequency, so we can even calculate the precise equivalent mass for any given wavelength of light). In this sense, light has mass, and this can be shown by gravitational lensing, where a large enough concentration of mass can actually bend the path of light ... precisely as would be expected if light had mass.


Is the volume of the unknown mass needed to calculate the mass of calcium oxide?

No. you will know the volume of the unknown mass after you calculate the mass of ca0


How do you calculate volume if only mass was given?

You would need to know the density of the object in order to calculate the volume from the mass. The formula to calculate volume from mass and density is: Volume = Mass / Density.


How to Calculate nuclear binding energy?

To calculate nuclear binding energy, you can subtract the mass of the nucleus from the sum of the masses of its individual protons and neutrons. The mass difference multiplied by the speed of light squared (E=mc^2) will give you the binding energy of the nucleus.


How do you calculate the atomic mass of carbon?

The same way you calculate the atomic mass of other elements.


How do you calculate the mass of the atom?

Protons and neutrons= mass


How to calculate mass with volume and molarity?

Not enough information. To calculate mass, you would need volume and density (mass = volume x density).


How do you calculate mass of a ball?

To calculate the mass of a ball, you would typically use the density of the material the ball is made of and its volume. The formula to calculate mass is mass = density x volume. You would need to know the density of the material and measure the volume of the ball to determine its mass.


What type of mass is light?

Light does not have mass. It consists of electromagnetic waves that do not possess rest mass.


How do you calculate the mass number?

mass number= protons+nutrons