by using the equation
E= hc/lembda
here E= energy = ? ;
h= planck constant = 6.626*10^-34 J.s
c= speed of light = 3*10^8 m/s
lembda= wavelength= 9.45*10^-19 m
E = (6.626*10^-34*3*10^8)/ (9.45*10^-19)
E= 2.1*10^-7 J
Answer (2 )
here lembda= 4.97*10^-8 m
Energy E = (6.626*10^-34*3*10^8)/ (4.97*10^-8)
E=3.9*10^-18 J
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