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Chapter 34: 11. (page 989)
When you look at your reflection in the bowl of a spoon, it is upside down. Why?
A spoon bowl acts as a concave mirror
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The 80-cm-tall, 65-cm-wide tank shown in FIGURE P34.49 is completely filled with water. The tank has marks every 10 cm along one wall, and the 0 cm mark is barely submerged. As you stand beside the opposite wall, your eye is level with the top of the water.
a. Can you see the marks from the top of the tank (the 0 cm mark) going down, or from the bottom of the tank (the 80 cm mark) coming up? Explain.
b. Which is the lowest or highest mark, depending on your answer to part a, that you can see?
A lens placed in front of an object creates an upright image twice the height of the object. The lens is then moved along the optical axis until it creates an inverted image twice the height of the object. How far did the lens move?
The illumination lights in an operating room use a concave mirror to focus an image of a bright lamp onto the surgical site. One such light uses a mirror with a 30 cm radius of curvature. If the mirror is 1.2 m from the patient, how far should the lamp be from the mirror?
To a fish in an aquarium, the -thick walls appear to be only thick. What is the index of refraction of the walls?
A-cm-thick layer of water stands on a horizontal slab of glass. A light ray in the air is incident on the waterfrom the normal. What is the ray鈥檚 direction of travel in the glass?
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