Newton's rings. A planoconvex lens rests on a flat glass surface. Light of wavelength À falls normal to the plane surface (Figure 11-35). (a) Find the spacing d as a function r, the radial position. Assume R (curvature radius) R >> r. (b) Show that bright interference fringes are located at the positions given by - [(m + ₂2) R₂ ] I, = where m is an integer.

icon
Related questions
Question

Handwritten solution are strictly prohibited. 

7. Newton's rings. A planoconvex lens rests on a flat
glass surface. Light of wavelength falls normal to
the plane surface (Figure 11-35).
(a) Find the spacing d as a function r, the radial
position. Assume R (curvature radius) R >>> r.
(b) Show that bright interference fringes are located
at the positions given by
1 = [(-+)]
where m is an integer.
Air
Glass
Glass
FIGURE 11-35
Problem 7.
R
1/2
d(r)
Transcribed Image Text:7. Newton's rings. A planoconvex lens rests on a flat glass surface. Light of wavelength falls normal to the plane surface (Figure 11-35). (a) Find the spacing d as a function r, the radial position. Assume R (curvature radius) R >>> r. (b) Show that bright interference fringes are located at the positions given by 1 = [(-+)] where m is an integer. Air Glass Glass FIGURE 11-35 Problem 7. R 1/2 d(r)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 5 images

Blurred answer