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CBSE Class 10 Answered

How does the focal length of a convex lens change
Asked by | 10 Apr, 2008, 08:57: PM
answered-by-expert Expert Answer

The focal length continues to increase as wavelength increases.

Since the wavelength of red light is greater than the blue light; hence the focal length of red light will be more than the blue light.

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Answered by | 23 May, 2008, 10:22: AM

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