Why does the eye-lens not have to do all the work of converging incoming light rays?
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The eye lens does not have to do all the work of converging incoming light rays because the cornea, which is in the front of the eye, also converges the rays of light entering the eye.
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When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
Complete the following statements:
When the sun is setting, the light from it has to travel a ____ thickness of the earth's atmosphere and only ____ wavelength _____ light is able to reach us. Sunset is therefore ___.