Please answer to all 5 questions. Not only for one.
Posted: Wed May 18, 2022 6:42 am
Please answer to all 5 questions. Not only for one.
Question 1 1 pts An object is placed in front of a curved mirror, with the object distance closer than the focal length. If the image that is formed is behind the mirror surface (i.e. a virtual image) then the what can be said about the mirror? The mirror can only be concave. The mirror can only be convex. Ο Ο The mirror could be either convex or concave. The focal length must be negative. Question 2 1 pts The acrylic prism was used to locate the critical angle for total internal reflection when travelling from acrylic to air. Using this result, and Snell's Law, the critical angle for total internal reflection for the opposite direction (i.e. light travelling from air into acrylic) will be... Larger than the critical angle from acrylic to air. The critical angle is the same regardless of which direction the light travels across the boundary between materials. There is no critical angle for this situation. OSmaller than the critical angle from acrylic to air.
Question 3 1 pts In the two-lens exercise, the final image was drawn. Now imagine if that final image was in fact an object (i.e. an object sitting to the right of the lens system). If the rays from this new object (i.e. the original image) were traced through the two lenses (from right to left), what would be true of its image? It would be in the same location as the original object, but upside down (ie. inverted). It would be a virtual image to the right of the two lens system, upright and reduced compared to the original object. a It would be further from the first lens than the original object, and larger than the orginal object. It would exactly match the location, size, and orientation of the original object. Question 4 1 pts In the experiment using the acrylic trapezoidal prism, you determined the refractive index by measuring the refracted angle. If a different material had been used in an identical experiment (same prism shape, same incident angle), and it had a refractive index of 1.15, which of the following is the best description of the new refracted angle? O The new refracted angle would be less than 1 degree different than for the acrylic prism. The new refracted angle would be about 10 degrees smaller than for the acrylic prism. The new refracted angle would be about 2 degrees larger than for the acrylic prism. The new refracted angle would be about 10 degrees larger than for the acrylic prism.
Question 5 1 pts There were two lenses used in this lab; a bi-concave lens and a bi-convex lens. The main difference(s) between these two lenses is... O All of the above options are true. The distance from the lens to the focal point was significantly different for the two lenses. Incoming rays are bent toward the axis for one lens and away from the axis for the other. The radius of curvature of the the lens surfaces was significantly different for the two lenses.
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Question 3 1 pts In the two-lens exercise, the final image was drawn. Now imagine if that final image was in fact an object (i.e. an object sitting to the right of the lens system). If the rays from this new object (i.e. the original image) were traced through the two lenses (from right to left), what would be true of its image? It would be in the same location as the original object, but upside down (ie. inverted). It would be a virtual image to the right of the two lens system, upright and reduced compared to the original object. a It would be further from the first lens than the original object, and larger than the orginal object. It would exactly match the location, size, and orientation of the original object. Question 4 1 pts In the experiment using the acrylic trapezoidal prism, you determined the refractive index by measuring the refracted angle. If a different material had been used in an identical experiment (same prism shape, same incident angle), and it had a refractive index of 1.15, which of the following is the best description of the new refracted angle? O The new refracted angle would be less than 1 degree different than for the acrylic prism. The new refracted angle would be about 10 degrees smaller than for the acrylic prism. The new refracted angle would be about 2 degrees larger than for the acrylic prism. The new refracted angle would be about 10 degrees larger than for the acrylic prism.
Question 5 1 pts There were two lenses used in this lab; a bi-concave lens and a bi-convex lens. The main difference(s) between these two lenses is... O All of the above options are true. The distance from the lens to the focal point was significantly different for the two lenses. Incoming rays are bent toward the axis for one lens and away from the axis for the other. The radius of curvature of the the lens surfaces was significantly different for the two lenses.