Question
Sun January 15, 2012 By:
 

Calculate mass of a photon with a wave lenght of 3.6 Armstrong

Expert Reply
Sun January 15, 2012

? = 3.6 Å = 3.6×10?10m

Velocity of photon = velocity of light

m= h/?? = (6.626 x 10-34Js)/(3.6 x10–10m)(3 x 108 ms-1) = 6.135 x 10-29 kg

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