Q 1. In a Newton's ring arrangement with air film observed with the light of wavelength 6× 10* cm, the difference of squares of diameters of successive rings is 0.125 cm?. What will happen to this quantity if: (a)Wavelength of light is changed to 4.5 × 10° cm. (b)A liquid of refractive index 1.33 is introduced between the lens and the plate. (c)The radius of curvature of the convex surface of the plano-convex lens is doubled.

Q 1. In a Newton's ring arrangement with air film observed with the light of wavelength 6× 10* cm, the difference of squares of diameters of successive rings is 0.125 cm?. What will happen to this quantity if: (a)Wavelength of light is changed to 4.5 × 10° cm. (b)A liquid of refractive index 1.33 is introduced between the lens and the plate. (c)The radius of curvature of the convex surface of the plano-convex lens is doubled.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter22: Reflection And Refraction Of Light

Section: Chapter Questions

Problem 30P: The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), whereas its index...

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

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Q 1. In a Newton's ring arrangement with air film observed with the light of wavelength 6x 10*
cm, the difference of squares of diameters of successive rings is 0.125 cm?. What will happen to
this quantity if:
(a)Wavelength of light is changed to 4.5 x 10 cm.
(b)A liquid of refractive index 1.33 is introduced between the lens and the plate.
(c)The radius of curvature of the convex surface of the plano-convex lens is doubled.

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