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Grade: 11

                        

What will be the wavenumber of yellow radiation having wavelength 240 nm

2 years ago

Answers : (1)

Arun
24742 Points
							
Wavelength of light= 2400x10^-10m
frequency is given by=c/wavelength
3x10^8/2400x10^-10
3x10^8/24x10^-8
0.125x10^16
wave number is reciprocal of wavelength
 wave number=1/wavelength=1/2400x10^-10=10^10/2400=0.0416x10^8 m^-1
2 years ago
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