core/cladding interface Calculate: The angle of refraction at the air/core interface, 0, critical angle, 0. The incident angle at the core/cladding interface, 0; Will this light ray propagate down the fiber? air/core interface nair =1 ncore= 1.46 necladding = 1.43 Oncident = 12° Answers: 0, - 8.2 0 - 78.4 0, - 81.8

core/cladding interface Calculate: The angle of refraction at the air/core interface, 0, critical angle, 0. The incident angle at the core/cladding interface, 0; Will this light ray propagate down the fiber? air/core interface nair =1 ncore= 1.46 necladding = 1.43 Oncident = 12° Answers: 0, - 8.2 0 - 78.4 0, - 81.8

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter1: The Nature Of Light

Section: Chapter Questions

Problem 14CQ: Is it possible that total internal reflection plays a role in rainbows? Explain in terms of indices...

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Similar questions

A severely myopic patient has a far point of 5.00 cm. By how many diopters should the power of his eye be reduced in laser vision correction to obtain normal distant vision for him?
Is it possible that total internal reflection plays a role in rainbows? Explain in terms of indices of refraction and angles, perhaps referring to Figure 25.48. Some of us have seen the formation of a double rainbow. Is it physically possible to observe a triple rainbow? Figure 25.48 Double rainbows are not a very common observance. (credit: InvictusOU812, Flickr)
Is it possible that total internal reflection plays a role in rainbows? Explain in terms of indices of refraction and angles, perhaps referring to that shown below. Some of us have seen the formation of a double rainbow; is it physically possible to observe a t - - rainbow? (credit “Chad”/Flickr)
Shown below is a ray of light going from air through crown glass into water, such as going into a fish tank. Calculate the amount the ray is displaced by the glass (x), given that the incident angle is 40.0° and the glass is 1 .00 cm thick.
On the Moon’s surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distance to the Moon is calculated from the round-trip time. What percent correction is needed to account for the delay in time due to the slowing of light in Earth’s atmosphere? Assume the distance to the Moon is precisely 3.84108m, and Earth’s atmosphere (which varies in density with altitude) is equivalent to a layer 30.0 km thick with a constant index of refraction n = 1.000293.
Suppose a certain person’s visual acuity is such that he can see objects clearly that term an image 4.00 m high on his retina. What is the maximum distance at which he can read the 75.0 cm high letters on the side of an airplane?
Construct Your Own Problem Consider sunlight entering the Earth’s atmosphere at sunrise and sunsetthat is, at a 90° incident angle. Taking the boundary between nearly empty space and the atmosphere to be sudden, calculate the angle of refraction for sunlight. This lengthens the time the Sun appears to be above the horizon, both at sunrise and sunset. Now construct a problem in which you determine the angle of refraction (or different models 01 the atmosphere, such as various layers of varying density. Your instructor may wish to guide you on the level of complexity to consider and on how the index at retraction varies with air density.
Find the radius of a star’s image on the retina of an eye if its pupil is open to 0.65 cm and the distance from the pupil to the retina is 2.8 cm. Assume =550 nm.
A certain childs near point is 10.0 cm; her far point (with eyes relaxed) is 125 cm. Each eye lens is 2.00 cm from the retina. (a) Between what limits, measured in diopters, does the power of this lenscornea combination vary? (b) Calculate the power of the eyeglass lens the child should use for relaxed distance vision. Is the lens converging or diverging?
(a) The print in many books averages 3.50 mm in height. How high is the image at the print on the retina when the book is held 30.0 cm from the eye? (b) Compare the size of the print to the sizes of rods and cones in the fovea and discuss the possible details observable in the letters. (The eye-brain system can perform better because of interconnections and higher order image processing.)
Verify that the critical angle for light going from water to air is 48.6°, as discussed at the end of Example 1.4, regarding the critical angle for lig1it traveling in a polystyrene (a type of plastic) pipe surrounded by air.
Sections 9.6 and 9.7 deal with the phenomena of dispersion and its applications to atmospheric optics. One such application is the explanation of rainbows. Develop a concept map that you could use to teach a friend or family member about the formation and basic characteristics of rainbows. Your map should include links to the fundamental physical processes of reflection, refraction, and dispersion and should distinguish between primary and secondary rainbows. It should also indicate the conditions that must be satisfied to observe rainbows.