1. [-/1 Points] DETAILS OSCOLPHYS2016 25.2.WA.001.TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER For an independent study project, you design an experiment to measure the speed of light. You propose to bounce laser light off a mirror that is 54.5 km due east and have it detected by a light sensor that is 133 m due south of the laser. The first problem is to orient the mirror so that the laser light reflects off the mirror and into the light sensor. (a) Determine the angle that the normal to the mirror should make with respect to due west. (b) Since you can read your protractor only so accurately, the mirror is slightly misaligned and the actual angle between the normal to the mirror and due west exceeds the desired amount by 0.0040. Determine how far south you need to move the light sensor in order to detect the reflected laser light. m Additional Materials Reading TutorialMY NOTES ASK YOUR TEACHER [-/1 Points] DETAILS OSCOLPHYS2016 25.2.WA.002. The figure below shows light reflecting off two mirrors (M, and M2) that are at right angles to each other. Also shown are the angles of incidence (01; and 02;) and reflection (1, and 02r) for light reflected off both mirrors. (a) Determine the angle the incident ray makes with M1 (the angle marked a in the diagram) in terms of other angles given. O 02r O T/2 - 02r a = O 7: / 2 - 021 O er O 011 (b) Determine the orientation of the final reflected ray relative to the incoming ray. O the two rays diverge the two rays are parallel to each other O the two rays converge M1 d M2 Additional Materials Reading3. [-/1 Points] DETAILS OSCOLPHYS2016 25.2.WA.003. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Two light rays, originating from the same point, have an angle of 11.0 between them and reflect off a plane mirror. Determine the angle between the reflected rays. Additional Materials Reading4. [-/1 Points] DETAILS OSCOLPHYS2016 25.3.WA.010.TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER As shown in the figure, a light beam travels from air, through olive oil, and then into water. If the angle of refraction 02 for the light in the olive oil is 32.40, determine the angle of incidence 01 in air and the angle of refraction 03 in water. The index of refraction for olive oil is 1.47. 01 = 111 air oil water Additional Materials Reading Tutorial5. [-/1 Points] DETAILS OSCOLPHYS2016 25.3.WA.013. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You have enrolled in a scuba diving class and while swimming under water in a nearby lake you look up and note that the Sun appears to be at an angle of 320 from the vertical. At what angle above the horizon does the diving instructor standing on shore see the Sun? Additional Materials Reading5. [-/1 Points] DETAILS OSCOLPHYS2016 25.3.WA.013. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You have enrolled in a scuba diving class and while swimming under water in a nearby lake you look up and note that the Sun appears to be at an angle of 320 from the vertical. At what angle above the horizon does the diving instructor standing on shore see the Sun? Additional Materials Reading7. [-/1 Points] DETAILS OSCOLPHYS2016 25.4.WA.021.TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You have a beaker with a layer of olive oil floating on top of water. A ray of light travels through the oil and is incident on the water with an angle of 77.0. Using the index of refraction of the oil as 1.470 and the index of refraction of water as 1.333, determine the critical angle in oil for the oil-water interface. ec= Determine if the ray of light refracts into the water or reflects off the oil-water interface back into the oil. refracts into the water O reflects back into the oil Additional Materials Reading Tutorial8. [-/1 Points] DETAILS OSCOLPHYS2016 25.4.WA.022. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Determine the minimum angle of incidence for light traveling in benzene in order to undergo total internal reflection from fused quartz. The indices of refraction respectively for benzene and fused quartz are 1.5 and 1.46. Additional Materials Reading9. [-/1 Points] DETAILS OSCOLPHYS2016 25.4.WA.023. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You can determine the index of refraction of a substance by determining its critical angle. (a) What is the index of refraction of a substance that has a critical angle of 43.50 when submerged in ethanol, which has an index of refraction of 1.361? (b) What would the critical angle be for this substance in air? Additional Materials Reading