In the two-slit experiment of the figure, let angle be 20.7°, the slit separation be 5.14 μm, and the wavelength be λ = 586 nm. (a) What multiple of A gives the phase difference between the waves of rays r₁ and r₂ when they arrive at point P on the distant screen? (b) What is the phase difference in radians? Incident wave (a) T B C (b) Sp Path length difference AL (a) What is the frequency of light with a 688 nm wavelength in air? (b) What is its wavelength in glass with an index of refraction of 1.52? (c) From the results of (a) and (b) find its speed in this glass. (a) Number i Units (b) Number i Units (c) Number i Units

In the two-slit experiment of the figure, let angle be 20.7°, the slit separation be 5.14 μm, and the wavelength be λ = 586 nm. (a) What multiple of A gives the phase difference between the waves of rays r₁ and r₂ when they arrive at point P on the distant screen? (b) What is the phase difference in radians? Incident wave (a) T B C (b) Sp Path length difference AL (a) What is the frequency of light with a 688 nm wavelength in air? (b) What is its wavelength in glass with an index of refraction of 1.52? (c) From the results of (a) and (b) find its speed in this glass. (a) Number i Units (b) Number i Units (c) Number i Units

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 75P: The structure of the NaCl crystal forms reflecting planes 0.541 nm apart. What is the smallest...

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Check Your Understanding Although m, the number of fringes observed, is an integer, which is often regarded as having zero uncertainty, in practical terms, it is all too easy to lose track when counting fringes. In Example 3.6, if you estimate that you might have missed as many as five fringes when you reported m=122 fringes, (a) is the value for the index of refraction worked out in Example 3.6 too large or too small? (b) By how much?