The energy of a particular color of orange light is 3.19E-22 kJ.
If we have to find the wave length of the orange colour
wavelength is given by the formula
lamda=hxc/E where h is planck constant,c is the speed of light and E is the energy given in joules
wavelength in metres=6.62x10^(-34) Joules secx2.99x10^(8) metres/sec dividedby 3.19x10^(-19) joules
We have converted kj to joules
by using calculator
wavelength of orange colour =6.23x10^(-7)metres
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