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Chapter 25: Q53PE (page 931)
What is the focal length of a makeup mirror that has a power of
The focal length of the mirror is .
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(a) A narrow beam of light containing yellow (580 nm) and green (550 nm) wavelengths goes from polystyrene to air, striking the surface at aincident angle. What is the angle between the colours when they emerge? (b) How far would they have to travel to be separated by 1.00 mm?
(a) What is the ratio of the speed of red light to violet light in diamond, based on Table 25.2?
(b) What is this ratio in polystyrene?
(c) Which is more dispersive?
A camera with a \(100{\rm{ }}mm\)focal length lens is used to photograph the sun and moon. What is the height of the image of the sun on the film, given the sun is \(1.40 \times {10^6}{\rm{ }}km\) in diameter and is \(1.50 \times {10^8}{\rm{ }}km\) away?
What is the focal length of a makeup mirror that produces a magnification of \(1.50\)when a person鈥檚 face is \(12.0\;cm\) away? Explicitly show how you follow the steps in the Problem-Solving Strategy for Mirrors.
A high-quality diamond may be quite clear and colourless, transmitting all visible wavelengths with little absorption. Explain how it can sparkle with flashes of brilliant colour when illuminated by white light
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