What is the laws of reflection and refraction? Try to draw a light path diagram to explain why the ruler appears to be bent when part of it is under the water. Explain how we can watch the 3D-movie by wearing the glasses providing by the cinema briefly.

What is the laws of reflection and refraction? Try to draw a light path diagram to explain why the ruler appears to be bent when part of it is under the water. Explain how we can watch the 3D-movie by wearing the glasses providing by the cinema briefly.

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter9: Optics

Section: Chapter Questions

Problem 5P

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Unreasonable results Suppose light travels from water to another substance, with an angle of incidence of 10.0and an angle of refraction of 14.9 . (a) What is the index of refraction of the other substance? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?
A Fermats principle of least time for refraction. A ray of light traveling in a medium with speed v1 leaves point A and strikes the boundary between the incident and transmitted media a horizontal distance x from point A as shown in Figure P38.98. The refracted ray travels with speed v2 in the second medium, eventually reaching point B. The horizontal distance between points A and B is L. a. Calculate the time t required for the light to travel from A to B in terms of the parameters labeled in the figure. b. Now take the derivative of t with respect to x. What is the condition for which the ray of light will take the shortest time to travel from A to B? Figure P38.98
(a) At the end of Example 1.4, it was stated that the critical angle for light going from diamond to air is 24.4°. Verify this. (b) What is the critical angle for light going from zircon to air?
A diverging lens has a focal length of 20.0 cm. Use graph paper to construct accurate ray diagrams for object distance of (a) 40.0cm and (b) 10.0 cm. In each case, determine the location of the image from the diagram and the image magnification, and state whether the image is uptight or inverted. (c) Estimate the magnitude of uncertainty in locating the points in the graph. Are your answers and the uncertainty consistent with the algebraic answers found in Problem 33?
7. What happens when the incident angle is greater than the critical angle? Please describe least two complete sentences. 8. This phenomenon is called Total Internal Reflection (TIR). What do you think would be some practical purposes of TIR in modern technology? Please name at least one example and explain your answer in at least two complete sentences.
a. Given the pattern of light on the far side of the prism, is the index of refraction inside the prism higher or lower than the index of refraction outside the prism? b. List at least one thing that is wrong with this diagram given what we expect the dependence of n on the wavelength of light to be (and assuming the prism is made of a uniform material). c. List at least one thing that is right with this diagram given what we expect the dependence of n on the wavelength of light to be (and assuming the prism is made of a uniform material).
The figure below show a slab made of three different materialS X, Y, and Z having refractive indices nx, ny, and nz respectively. The slab is immersed in water(n=1.333) and the light is incident upon its bottom surface. A. Rank the materials according to the refracted index of the materials, greatest first. B. Rank tge materials according to the speed of light in the material, fastest first. C. What would happend to the angle of y if material X and Y are swapped.
a) Draw an equilateral prism and show the angle of minimum deviation. b) Write down the minimum deviation angle in terms of angles that light makes with the normal of the entrance and exit surfaces of the prism. (Use geometry) c) Write down the law of refraction to find n in terms of minimum deviation angle. D) How do we measure the angle of minimum deviation in a prism?
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