
Concept explainers
The use of a lens in a certain situation is described by the equation
Determine (a) the object distance and (b) the image distance. (c) Use a ray diagram to obtain a description of the image. (d) Identify a practical device described by the given equation and write the statement of a problem for which the equation appears in the solution.

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Chapter 26 Solutions
Principles of Physics: A Calculus-Based Text, Hybrid (with Enhanced WebAssign Printed Access Card)
- ! Required information Assume that the magnifier is held close to the eye. Use the standard near point of 25.0 cm to find the angular magnification. An insect that is 4.10 mm long is placed 10.3 cm from a simple magnifier with a focal length of 13.0 cm. What is the angular magnification?arrow_forward2arrow_forward3arrow_forward
- Imagine you are out for a stroll on a sunny day when you encounter a lake. Unpolarized light from the sun is reflected off the lake into your eyes. However, you notice when you put on your vertically polarized sunglasses, the light reflected off the lake no longer reaches your eyes. What is the angle between the unpolarized light and the surface of the water, in degrees, measured from the horizontal? You may assume the index of refraction of air is nair=1 and the index of refraction of water is nwater=1.33 . Round your answer to three significant figures. Just enter the number, nothing else.arrow_forwardDeduce what overvoltage is like in reversible electrodes.arrow_forwardpls help on thesearrow_forward
- pls help on thesearrow_forward20. Two small conducting spheres are placed on top of insulating pads. The 3.7 × 10-10 C sphere is fixed whie the 3.0 × 107 C sphere, initially at rest, is free to move. The mass of each sphere is 0.09 kg. If the spheres are initially 0.10 m apart, how fast will the sphere be moving when they are 1.5 m apart?arrow_forwardpls help on allarrow_forward
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