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arXiv · 1304.7586

Revisiting Fizeaus Observations: Spectral study of Na source using Newtons rings

K S Umesh·Denny Melkay·J Adithya·Sai Prem Shaji·N Ganesh·R Dharmaraj·Rajkumar Jain·S Nanjundan
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Abstract

Conventional Newtons rings is generally used in undergraduate laboratory to determine the average wavelength of Na doublet. A minor modification of this setup enables us to view simultaneously Newtons rings both in reflected as well as transmitted light. A movable glass plate with respect to the plano-convex lens allows us to observe the variation of contrast/visibility of these fringes and thus allows us to determine the separation of the yellow doublet.

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K S Umesh, Denny Melkay, J Adithya, Sai Prem Shaji, N Ganesh, R Dharmaraj, Rajkumar Jain, S Nanjundan. 2013-04-29. Revisiting Fizeaus Observations: Spectral study of Na source using Newtons rings. https://arxiv.org/abs/1304.7586

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