Focal length of a lens for red light is more than that for blue light.
Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
Will the focal length of a lens for red light be more, same or less than that for blue light?
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The focal length of a lens for red light will be more than that for blue light. This is because red light has a longer wavelength, causing it to refract less, resulting in a larger focal length compared to blue light.
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