For which rays – red or violet – will the main focal length of the converging lens be greater?
| September 8, 2021 | education
Red wavelength range from 625nm to 740nm.
And the wavelength range of violet is from 380nm to 440nm.
Accordingly, since the wavelength of the red spectrum is longer, then the main focal length of the converging lens will be larger for red rays.
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