Do photons of light have mass ?

Do photons of light have mass ? created 11 months ago on June 16, 2012 by Brother Dave

They are real particles with mass

They are particles without mass

They are waves and particles without mass

They are mainly waves without mass

They have Mass only if they are practicing religionists (joke)

They have only momentum, at rest they are massless

Light can be bent by gravity, so some mass must be present

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