r² 2. A Newton's rings apparatus is to be used to determine the radius of curvature of a lens. Prove R = N₂ denote the Nth dark fringe and the corresponding radius, respectively, and R is the radius of curvature of a lens. R-h R r where N and r Th

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2. A Newton's rings apparatus is to be used to determine the radius of curvature of a lens. Prove R= where N and r
N₂
denote the Nth dark fringe and the corresponding radius, respectively, and R is the radius of curvature of a lens.
R-h R
P
h
Transcribed Image Text:2. A Newton's rings apparatus is to be used to determine the radius of curvature of a lens. Prove R= where N and r N₂ denote the Nth dark fringe and the corresponding radius, respectively, and R is the radius of curvature of a lens. R-h R P h
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