Circles
Newton 's rings ( Newton's rings ) are a series of alternating, central, bright, and black circles centered at the point of contact between two surfaces. It was first observed in Newton 1717 with monochromatic light. Isaac Newton, who studied them, named it Newton rings. [1]
Contents
Doctrine
When viewed with white light, the air layer between light wavelength surfaces interferes at different concentrations so that the colors of the rainbow form a central ring pattern.
Optical Flat Interference
The main reason for the formation of these rings: When light rays fall on a transparent object, two things happen. 1) reflective, 2) overlapping,
description
1) Reflection: The retraction of light rays when light falls on an object. 2) Transmigration: The distribution of light rays through an object. These two actions interfere with the rays of light interacting with each other. This results in Newtonian rings. The interference of two consecutive waves of rays, or a combination of two consecutive troughs, can cause structural interference and create light rings. Similarly, the drone combination of the second wave of the waves of one wave can cause destructive interference and create dark circles. This is where light circles and dark circles form.
radius of the Newtonian circle
Radius of the N Newton circle:
{ displaystyle r_ {N} = left [ left (N- {1 over 2} right) lambda R right] ^ {1/2},}
![{displaystyle r_{N}=left[left(N-{1 over 2}
ight)lambda R
ight]^{1/2},}](https://wikimedia.org/api/rest_v1/media/math/render/svg/32beeb2fa90ea9782b490d6be13ac88032dc3a88)
Here
r_N -> N radius
N -> Bright Ring Number
R -> The radius of curvature of the lens
λ -> wavelength of light [2]
