6.An oil layer that is 5.0 cm thick is spread smoothly and evenly over the surfaceof water on a windless day. What is the angle of refraction in the water for a ray of lightthat has an angle of incidence of 45° as it enters the oil from the air above? (The indexof refraction for the oil is 1.45, and for water it is 1.33.)A. 29οВ. 50°C. 40°D. 32°E. The ray will totally internally reflect in the oil.

Answered: Image /qna-images/answer/6351db00-f285-43a2-8939-a0703bb0b055.jpg

Answered: An oil layer that is 5.0 cm thick is…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter25: Geometric Optics

Section: Chapter Questions

Problem 24PE: Suppose you are using total internal reflection to make an efficient corner reflector. If there is...

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Similar questions

Suppose Figure 25.54 represents a ray of light going from air through crown glass into waist, such as going into a fish tank. Calculate the amount the ray is displaced by the glass (x) , given mat me incident angle is 40.0° and the glass is 1.00 cm thick.
What is the speed of light in air? In crown glass?
A ray of light, emitted beneath the surface of an unknown liquid with air above it, undergoes total internal reflection as shown in Figure 25.55. What is the index of retraction for the liquid and its likely identification? Figure 25.55 A tight ray inside a liquid strikes the surface at the critical angle and undergoes total internal reflection.
Show that when light reflects from two mirrors that meet each other at a right angle, the outgoing ray is parallel to the incoming ray, as illustrated in the following figure. Figure 25.51 A corner reflector sends the reflected reflected ray back in a direction parallel to the incident ray, independent of incoming direction.
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.
Referring to the electric room heater considered in the first example in this section, calculate the intensity of IR radiation in W/m2 projected by the concave mirror on a person 3.00 m away. Assume that the healing element radiates 1500 W and has an area of 100 cm2, and that half of the radiated power is reflected and focused by the mirror.
(a) Using information in Figure 25.53, find the height of the instructor's head above the water, noting that you will first have to calculate the angle of incidence. (b) Find the apparent depth of the diver’s head below water as seen by the instructor.
An opaque cylindrical tank with an open top has a diameter of 3.00 m and is completely filled with water. When the afternoon Sun reaches an angle of 28.0 above the horizon, sunlight ceases to illuminate the bottom of the tank. How deep is the tank?
Electric room heaters use a concave mirror to reflect infrared (IR) radiation from hot coils. Note that IR radiation follows the same law of reflection as visible light. Given that the mirror has a radius of curvature of 50.0 cm and produces an image of the coils 3.00 m away from the mirror, where are the coils?
An optical fiber uses flint glass clad with crown glass. What is the critical angle?
Suppose you are using total internal reflection to make an efficient corner reflector. If there is air outside and the incident angle is 45.0°, what must be the minimum index of refraction of the material from which the reflector is made?
What is the power of the eye when viewing an object 50.0 cm away?

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