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JEE PHYSICS MCQ: RAY OPTICS

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Understanding +4 | -1
A beam of white light is incident on a convex lens. Which of the following is the correct relation between the focal length for red light (fR)\left(f_R\right) and that of violet light (fV)\left(f_V\right) ?
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Correct option: C
fR>fVf_R>f_V
Option C (fR>fVf_R>f_V) is correct because the focal length is directly proportional to the wavelength of light, and red light has a longer wavelength than violet light.

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