Does Light Have Mass?

[lumphoboextreme]

Re: Does Light Have Mass?

i think this is a question to ask ur science teacher... thats probably the most reliable source

yeah really, my bio teacher seems to know everything. 0.o

[ogmsband]

Re: Does Light Have Mass?

The short answer is "no", but it is a qualified "no" because there are odd ways of interpreting the question which could justify the answer "yes".

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.

you copied that i have it printed out but its leading me in circles

[irishknight]

Re: Does Light Have Mass?

Well everything is made of atoms, and atoms DO have mass.. As far as I know.

[gtrick69]

Re: Does Light Have Mass?

light isn't made of atoms, its photons mang...which apparently DO NOT have mass so i'de say the answer is no, but originally i thought yes because a photon is SOMTHING so i just assumed it had a lil' amount of mass but guess not

[ellabella20]

Re: Does Light Have Mass?

I know.

[PinoySkillz]

Re: Does Light Have Mass?

Most of the people who've posted in this thread need to read this.

Thank you.