Calculate the energy in joule corresponding to light of wavelength 45 nm : ( Planck's Constant h= 6.63*10-34Js; speed of light c=3*108 ms-1)
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Energy = h(c/y)
Y = Wavelength
C = Speed of light
h = planks constant
Convert the wavelength to m:
45 × 10⁻⁹m
Doing substitution :
E = 6.63 × 10⁻³⁴ × ( 3 × 10⁸ ÷ 4.5 × 10⁻⁸) = 4.42 × 10⁻¹⁸ Joules
Y = Wavelength
C = Speed of light
h = planks constant
Convert the wavelength to m:
45 × 10⁻⁹m
Doing substitution :
E = 6.63 × 10⁻³⁴ × ( 3 × 10⁸ ÷ 4.5 × 10⁻⁸) = 4.42 × 10⁻¹⁸ Joules
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