Which one of the below statements is wrong? Select one: Color dispersion in a dielectric material is an indication of the frequency dependence of its refractive index. A spherical ball of glass (ng = 1.5), with a radius of 20 cm, is immersed in water (nw = 1.3). The surface of the ball has a refractive power of 0.01 D. Fermat’s principle states that the trajectory of a light ray between two points extremizes the total optical path.

Which one of the below statements is wrong? Select one: Color dispersion in a dielectric material is an indication of the frequency dependence of its refractive index. A spherical ball of glass (ng = 1.5), with a radius of 20 cm, is immersed in water (nw = 1.3). The surface of the ball has a refractive power of 0.01 D. Fermat’s principle states that the trajectory of a light ray between two points extremizes the total optical path.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter25: Reflection And Refraction Of Light

Section: Chapter Questions

Problem 62P

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A beam of green light enters glass from air, at an angle of incidence = 24 degrees. The frequency of green light = 559 x 1012 Hz. Refractive index of glass = 1.56. Speed of light in air = 3 x 10° m/s. What will be its wavelength inside the glass? Write your answer in terms of nanometers.
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Problem 9: Consider light passing from air into water. What is the ratio of its wavelength in water, λw, to its wavelength in air, λa?