What is true for the critical incident angle? O The incident angle goes from a low to a higher index of refraction. O None of these is true. O The incident angle is the angle which results in dispersion. O The incident angle is not equal to the angle of reflection. O The incident angle is the angle for which the angle of refraction is 90°.

What is true for the critical incident angle? O The incident angle goes from a low to a higher index of refraction. O None of these is true. O The incident angle is the angle which results in dispersion. O The incident angle is not equal to the angle of reflection. O The incident angle is the angle for which the angle of refraction is 90°.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter38: Refraction And Images Formed By Refraction

Section: Chapter Questions

Problem 99PQ

See similar textbooks

Similar questions

(a) Using information in the preceding problem, 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.
A catfish is 1.8 m below the surface of a smooth lake. (a) What is the diameter of the circle on the surface through which the fish can see the world outside the water? (b) If the fish descends, does the diameter of the circle increase, decrease, or remain the same? Assume that the index of refraction of water is 1.333.
Consider a ray of light from an air incident on material at its Brewster’s angle of 60. (a) What is the index of refraction of the material? (b) What is the angle of refraction?
Consider a light ray that transitions from a material with a higher index of refraction to a material with a lower index of refraction. a) does this ray speed up or slow down b) does it bend toward the normal line or away from the line? c) do you get internal reflection when index of refraction for the second material is larger than the index of refraction for the first material or when it is smaller?
In the figure, light enters a 90° triangular prism at point A with incident angle θ, and then some of it refracts at point B with an angle of refraction of 90°. (a) What is the index of refraction of the prism in terms of θ? (b) What, numerically, is the maximum value that the index of refraction can have? (c) Does light emerge at B if the incident angle at A is (i) increased slightly and (ii) decreased slightly? Hint: sin2θ + cos2θ = 1. Answer: √(1+ sin2θ), 1.41, emerges into air, internally reflected
An object 3 mm high is placed 20 cm from a converging mirror whose radius of curvature is 20 cm. a) Where is the final image, and is it real or virtual? b) How big is the image, and is it erect or inverted?
(a) In the figure, light from ray A refracts from material 1 into a thin layer of material 2, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (i) What is the value of incident angle θA? Draw a sketch of the situation. (ii) If θA is decreased, does part of the light refract into material 3? (b) Light from ray B refracts from material 1 into the thin layer, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (iii) What is the value of incident angle θB? Draw a sketch of the situation. (iv) If θB is decreased, does part of the light refract into material 3? Answer: 54.3°, yes, 51.1°, no
a) Given that the angle between the ray in the water and the perpendicular to the water is 25.0 ° , and using information in Figure below, find the height of the instructor’s head above the water, noting that you will first have to calculate the angle of refraction. (b) Find the apparent depth of the diver’s head below water as seenby the instructor. Assume the diver and the diver's image are the same horizontal distance from the normal.
A technician directs a light ray through a transparent medium, toward one surface of an equilateral prism. (The ray travels, and remains in, the plane of the page.) Incident on Surface 1 at an angle ?1, the ray then encounters Surface 2 from within the prism. If the angle of incidence at Surface 2 equals ?c , the critical angle for this prism, what is the original incidence angle, ?1 (in degrees)? The critical angle in this case is ?c = 41.5°. answer in degrees
As shown the path of a light beam through several slabs with different indices of refraction. (a) If θ1 = 30.0°, what is the angle θ2 of the emerging beam? (b) What must the incident angle θ1 be to have total internal reflection at the surface between the medium with n = 1.20 and the medium with n = 1.00?
Part A: In the above figure, a light beam shines through air and then strikes a mirror, making an angle theta = 23.2 degrees with respect to the vertical, as shown. The reflected beam then strikes a pane of glass of thickness h = 1.32 cm, located a distance y= 57.6 cm from the mirror, and then exits the glass pane at the bottom, a horizontal distance x cm away from where it struck the mirror. What is the value of x? Part B: This time, the incident ray is coming in from water (n=1.33) rather than air. And this time, theta = 37.5 degrees, y = 27.1 cm and h = 1.34 cm. What is x now? PLEASE ANSWER BOTH PARTS.
Consider a horizontal interface between air above and glass of index of refraction 1.55 below. (a) Draw a light ray incident from the air at angle of incidence 30.0°. Determine the angles of the reflected and refracted rays and show them on the diagram. (b) What If? Now suppose the light ray is incident from the glass at an angle of 30.0°. Determine the angles of the reflected and refracted rays and show all three rays on a new diagram. (c) For rays incident from the air onto the air–glass surface, determine and tabulate the angles of reflection and refraction for all the angles of incidence at 10.0° intervals from 0° to 90.0°. (d) Do the same for light rays coming up to the interface through the glass.