Applied Physics
11th Edition
ISBN: 9780132719865
Author: EWEN, Dale
Publisher: PEARSON
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Chapter 21.10, Problem 2P
To determine
Find angle of refraction.
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A ray of light strikes a flat block of glass at an incidence angle of
?1 = 38.6°. The glass is 2.00 cm thick and has an index of refraction that equals ng = 1.52.
(a) What is the angle of refraction, ?2,that describes the light ray after it enters the glass from above? (Enter your answer in degrees to at least 2 decimal places.)
b.)With what angle of incidence, ?3,does the ray approach the interface at the bottom of the glass? (Enter your answer in degrees to at least 2 decimal places.)
An upward vertical incident ray is aimed towards a plane mirror attached to the wall and ceiling. The mirror makes an angle of 30° with the ceiling. The light ray is reflected towards a glass window of index of refraction 1.52. Determine the angle of reflection, the angle of incidence for refraction and the angle of refraction.
As shown in the figure, a light beam travels from air, through olive oil, and then into water. If the angle of refraction ?2 for the light in the olive oil is 25.4°, determine the angle of incidence ?1 in air and the angle of refraction ?3 in water. The index of refraction for olive oil is 1.47.
?1 =
?3 =
Chapter 21 Solutions
Applied Physics
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- What is the magnification of a magnifying lens with a focal length of 10 cm if it is held 3.0 cm from the eye and the object is 12 cm from the eye?arrow_forwardAs shown in the figure, a light beam travels from air, through olive oil, and then into water. If the angle of refraction ?2 for the light in the olive oil is 34.2°, determine the angle of incidence ?1 in air and the angle of refraction ?3 in water. The index of refraction for olive oil is 1.47. ?1 = ° ?3 = °arrow_forwardA beam of light going through a medium with an index of refraction of 1.14 has an angle of incidence of 480 with another medium. If the light wave is at a new angle of 390, what is the index of refraction for the second medium?arrow_forward
- A ray of light hits the surface between air and an unknown material at an angle A of 46.8°. The index of refraction of the material is 1.287. What is the angle of refraction?arrow_forwardAs shown in the figure, a light beam travels from air, through olive oil, and then into water. If the angle of refraction ?2for the light in the olive oil is 33.4°, determine the angle of incidence ?1in air and the angle of refraction ?3in water. The index of refraction for olive oil is 1.47.?1 = °?3 = °arrow_forwardA ray of light travels from water to crown glass. If the ray of light in the crown glass makes an angle of 20.0 degrees to the normal, what is the angle of incidence in the water?arrow_forward
- A light beam travels from air, through olive oil, and then into water. If the angle of refraction ?2 for the light in the olive oil is 30.6°, determine the angle of incidence ?1 in air and the angle of refraction ?3 in water. The index of refraction for olive oil is 1.47.arrow_forwardA beam of light in air makes an angle of 30.0° relative to the surface of a diamond. The index of refraction for air is 1.000, and the index of refraction for diamond is 2.417. What is the angle of the light beam in the diamond, relative to the surface?arrow_forwardA ray of light hits a flat mirror with an incident angle of 19.03 degrees. What angle does it reflect at?arrow_forward
- A ray of light crosses the boundary between some substance with n=1.58 and air, going from the substance into air. If the angle of incidence is 17° What is the angle of refraction?arrow_forwardA ray of light travels across a liquid-to-air. If the index of refraction for the liquid is, 1.33 . What is the critical angle at this interface?arrow_forwardray of light strikes a flat block of glass at an incidence angle of ?1 = 38.6°. The glass is 2.00 cm thick and has an index of refraction that equals ng = 1.52. a.)What is the angle of refraction, ?2, that describes the light ray after it enters the glass from above? (Enter your answer in degrees to at least 2 decimal places.) b.) With what angle of incidence, ?3, does the ray approach the interface at the bottom of the glass? (Enter your answer in degrees to at least 2 decimal places.) c.) With what angle of refraction, ?4, does the ray emerge from the bottom of the glass? (Enter your answer in degrees to at least 1 decimal place.) d.) The distance d separates the twice-bent ray from the path it would have taken without the glass in the way. What is this distance (in cm)? e.) At what speed (in m/s) does the light travel within the glass? f.) How many nanoseconds does the light take to pass through the glass along the angled path shown here?arrow_forward
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