When the rectangular metal tank in the figure is filled to the top with an unknown liquid, observer O, with eyes level with the top of the tank, can just see corner E. A ray that refracts toward O at the top surface of the liquid is shown. If D = 88.3 cm and L = 2.88 m, what is the index of refraction of the liquid? -Normal to liquid surface D L- Number UnitsThe figure shows light reflecting from two perpendicular reflecting surfaces A and B. Find the angle between the incoming ray i and the outgoing ray r'. 18 Number Units This answer has no units "(degrees) e Textbook and Media m kg S Save for Later m/s Attempts: 0 of 3 used Submit Answer m/s^ 2 N J W N/m kg.m/s or N-s N/m^2 or Pa kg/m^ 3 g m/s^3 timesThe index of refraction of a certain liquid is 2.3. What is the critical angle for a light ray traveling in this liquid toward a flat layer of air above it? Number i Units This answer has no units "(degrees) eTextbook and Media m kg S Save for Later Attempts: 0 of 3 used m/s Submit Answer m/s^ 2 N L W N/m kg-m/s or N-s N/m^2 or Pa kg/m^3 g m/5^3 timesThe figure depicts a simplistic optical fiber: a plastic core (n1 = 1.56) is surrounded by a plastic sheath (n2 = 1.44). A light ray is incident on one end of the fiber at angle 0. The rays is to undergo total internal reflection at point A, where it encounters the core-sheath boundary. (Thus there is no loss of light through that boundary.) What is the maximum value of @ that allows total internal reflection at A? Number Units This answer has no units (degrees) eTextbook and Media m kg S GO Tutorial m/s m/s^ 2 Save for Later N Attempts: 0 of 3 used Submit Answer J W N/m kg.m/s or N-s N/m^2 or Pa kg/m^ 3 8 m/s^3 timesLight in vacuum is incident on the surface of a slab of transparent material. In the vacuum the beam makes an angle of 31.60 with the normal to the surface, while in the slab it makes an angle of 25.40 with the normal. What is the index of refraction of the transparent material? Number Units This answer has no units "(degrees) eTextbook and Media m kg S Save for Later Attempts: 0 of 3 used m/s Submit Answer m/s^ 2 N J W N/m kg-m/s or N-s N/m^2 or Pa kg/m^3 m/s^3 timesIn Figure (a), a beam of light in material 1 is incident on a boundary at an angle of 01 = 30. The extent of refraction of the light into material 2 depends, in part, on the index of refraction n2 of material 2. Figure (b) gives the angle of refraction 02 versus n2 for a range of possible n2 values. The vertical axis scale is set by 02, = 110 and 02b = 490. (a) What is the index of refraction of material 1? (b) If the incident angle is changed to 670 and material 2 has n2 = 2.4, then what is angle 02? 2 30 1.3 1.5 1.7 1.9 (a) (b) (a) Number i Units (b) Number i UnitsA point source of light is 60.5 cm below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water. Water has an index of refraction of 1.33. Number Units Wb No units eTextbook and Media UT C A Save for Later V/m Attempts: 0 of 3 used Submit Answer cm W Hz