On alternative methods of determining Radius of Curvature using Newton’s Rings set up

• Autorzy: Raveesha K. H. , Kumar K. , Prasad B. K.

Identyfikatory

DOI

10.18052/www.scipress.com/ILCPA.48.27

• Języki publikacji: EN

Abstrakty

EN

It well known that radius of curvature of a plano convex lens can be determined using Newton’s Rings set up making use of Interference by division of amplitude principle. The general method widely used involves measurement of diameter of several circular dark fringes. We propose two alternative methods involving different formulae. It is based on the fact that, the formation of bright and dark interference fringes is a measure of the thickness of the air film at that point. The methods use simpler geometry and the formulae are easier to derive. We present the experimental data. The results from the experiment are in agreement with results obtained through the general method.

Słowa kluczowe

EN

Plano convex lens; Interference; fringes; destructive interference; constructive interference

• Wydawca: Przedsiębiorstwo Wydawnictw Naukowych "DARWIN"
• Czasopismo: International Letters of Chemistry, Physics and Astronomy
• Rocznik: 2015
• Tom: Vol. 48
• Strony: 27--31
• Opis fizyczny: Bibliogr. 2 poz., rys., wz.

Twórcy

autor

Raveesha K. H.

• Dept. of Physics, CMR Institute of Technology, Bangalore

autor

Kumar K.

• Dept. of Mathematics, CMR Institute of Technology, Bangalore

autor

Prasad B. K.

• Dept of Physics, CMR Institute of Technology, Bangalore

Bibliografia

• [1] Ajoy Ghatak, 1991, Optics ,Tata Mcgraw Hill publication, 3rd Edition, 13.16.
• [2] Chattopadhyay, 2002, An advanced course in Practical Physics, Central Publication, 6th Edition, 227.