Question #08486

1 Answer
Surya K. · Rabik J.
Jan 25, 2018

#=5.227*10^-19J#

Explanation:

The energy of a photon is equal to #(hc)/lambda#, where #h# is Planck's constant, #c# is the speed of light, and #lambda# is the wavelength in meters.

So here we have:
#h=6.626*10^-34 m ^2kgs^-1#
#c=299 792 458ms^-1#
#lambda=380*10^-9m#

So input:
#(6.626*10^-34*299 792 458)/(380*10^-9)#

#=5.227*10^-19J#

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