The mass of a photon with a wavelength equal to 1.54xx10^(-8) cm is

1.	The mass of a photon with a wavelength equal to 1.54xx10^(-8) cm is
Answer» `0.8268xx10^(-34)` kg `1.2876xx10^(-33)` kg `1.4285xx10^(-32)` kg `1.8884xx10^(-32)` kg Solution :We know that `lambda=h/"MV"`, `THEREFORE m=h/(lambdav)` The velocity of photon (v)`=3xx10^8 msec^(-1)` `lambda=1.54xx10^(-8) cm =1.54xx10^(-10)` meter `therefore m=(6.626xx10^(-34)JS)/(1.54xx10^(-10) m XX 3xx 10^8 m sec^(-1))` `=1.4285xx10^(-32)` kg

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