Jennifer stretches in front of the 2.0 m tall mirror in her hallway, aiming the green laser pointerat the angle 45 degrees below the horizontal and observes the reflection on the floor, distancex away.If the laser is initially 1.56 m above the ground and Jennifer is standing 1.56 m away from themirror, how far away from the mirror is the spot on the floor?[note that x doesn't need to be smaller than d, it just happens to be in this sketch]|hd.x2.0 m

Answered: Jennifer stretches in front of the 2.0…

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter1: The Nature Of Light

Section: Chapter Questions

Problem 34P: Suppose a man stands in front of a mm-or as show below. His eyes are 1.65 m above the floor and the...

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Similar questions

If the apex angle in the previous problem is 20.0° and n = 1.50, what is the value of a?
Two stars that are 109km apart are viewed by a telescope and found to be separated by an angle of 105 radians. If the eyepiece of the telescope has a focal length of 1.5 cm and the objective has a focal length of 3 meters, how far away are the stars from the observer?
A nearsighted man cannot see objects clearly beyond 20 cm from his eyes. How close must he stand to a mirror in order to see what he is doing when he shaves?
A student’s eyes, while reading the blackboard, have a power of 51.0 D. How far is the board from his eyes?
For specular reflection, what is the situation with an angle of incidence of (a) 0 and (b) 90?
The Sun appears at an angle of 48.1° above the horizontal as viewed by a dolphin swimming underwater. What angle does = 1.333. Enter an answer between 0° and the sunlight striking the water actually make with the horizon? (Assume nwater 90°.) O
The eyes of a person standing at the edge of a 1.2-m-deep swimming pool are 1.6 m above the surface of the water.Light coming from a silver dollar at the bottom of the pool entersthe person's eyes at an angle of 37° below the horizontal. Draw a picture of a light ray that leaves the dollar and enters the person'seyes and calculate the horizontal distance from the person to the dollar.
A laser beam is incident on a mirror at an angle of 30°, as shown. It reflects off the mirror and strikes a wall 2.0 m away at point P. By what distance does the laser spot on the wall move if the mirror is rotated by 10°?
A student stands dsub0=2.4 m in front of a floor-to-ceiling mirror. Her eyes are hsube=1.53 m above the floor and she holds a flashlight at a distance hsubf=.55 m above the floor. Calculate the angle in degrees that the flashlight makes with respect to the floor if the light is reflected into her eyes.
A submarine is 300 m horizontally from the shore of a freshwater lake and 100 m beneath the surface of the water. A laser beam is sent from the submarine so that the beam strikes the surface of the water 210 m from the shore. A building stands on the shore, and the laser beam hits a target at the top of the building. The goal is to find the height of the target above sea level. (a) Draw a diagram of the situation, identifying the two triangles that are important in finding the solution. (b) Find the angle of incidence of the beam striking the water–air interface. (c) Find the angle of refraction. (d) What angle does the refracted beam make with the horizontal? (e) Find the height of the target above sea level.
Consider a common mirage formed by superheatedair just above a roadway. A truck driver whose eyes are2.00 m above the road, where n = 1.000 3, looks forward.She has the illusion of seeing a patch of water ahead onthe road, where her line of sight makes an angle of 1.20°below the horizontal. Find the index of refraction of theair just above the road surface. [Hint: Treat this as aproblem involving total internal reflection.]

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