InterviewSolution
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InterviewSolution
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A photon of wavelength `4400 Å` is passing through vaccum. The effective mass and momentum of the photon are respectivelyA. `5 xx 10^(-36) kg, 1.5 xx 10^(-27) kg - m//s`B. `5 xx 10^(-35) kg, 1.5 xx 10^(-26) kg - m//s`C. Zero , `1.5 xx 10^(-26) kg - m//s`D. `5 xx 10^(-36) kg , 1.67 xx 10^(-43) kg - m//s` |
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Answer» Correct Answer - A `p = (h)/(lambda) = (6.6 xx 10^(-34))/(4400 xx 10^(-10)) = 1.5 xx 10^(-27) kg . m//s` and mass `m = (p)/( c ) = (1.5 xx 10^(-27))/(3 xx 10^(8)) = 5 xx 10^(-36) kg` |
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