In an experiment with a convex lens. The plot of the image distance v ' against the object distance μ ' measured from the focus gives a curve v ' μ ' = 225 . If all the distances are measured in cm . The magnitude

Question

In an experiment with a convex lens. The plot of the image distance v ' against the object distance &#956; ' measured from the focus gives a curve v ' &#956; ' = 225 . If all the distances are measured in cm . The magnitude of the focal length of the lens is _____ cm .

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Using Newton's formula for lenses, v u = f 2 , here, f is focal length of the lens. Given here, v ' &#956; ' = 225 Thus, focal length of the lens is f 2 = 225 Or f = 15 &#160; cm

In an experiment with a convex lens. The plot of the image distance v ' against the object distance μ ' measured from the focus gives a curve v ' μ ' = 225 . If all the distances are measured in cm . The magnitude of the focal length of the lens is _____ cm .

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More from Ray Optics

In an experiment with a convex lens. The plot of the image distance v &#39; against the object distance &#956; &#39; measured from the focus gives a curve v &#39; &#956; &#39; = 225 . If all the distances are measured in cm . The magnitude of the focal length of the lens is _____ cm .

Correct answer

Step-by-step solution

More from Ray Optics

In an experiment with a convex lens. The plot of the image distance v ' against the object distance μ ' measured from the focus gives a curve v ' μ ' = 225 . If all the distances are measured in cm . The magnitude of the focal length of the lens is _____ cm .