Answer the following questions related to ex. 35.1 and effective focal length: (a) redo example 35.1, but this time with the two lenses separated by 10mm rather than 60mm. you should still assume that a 10-cm-tall object is 500 mm from the first lens. what is the effective focal length of this double-lens system? (b) prove the following statement: if the distance separating two lenses is zero, then the effective local length of the system is f, where 1 f = 1 f1 + 1 f2 to prove this, basically redo the same problem as part a, but don’t plug in numbers. 2. suppose you have a picture that is very underexposed (too dark). how would you improve the image under the following conditions? (a) you are allowed to change the focal length, but not the aperture size nor shutter speed. (b) you are allowed to change the aperture size, but not the focal length nor shutter speed. (c) you are allowed to change the shutter speed, but not the focal length nor aperture size. (d) what happens to the magnification of the picture in each of the three cases above?
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Physics, 21.06.2019 13:40
Niobium forms a substitutional solid solution with vanadium. compute the number of niobium atoms per cubic centimeter for a niobium-vanadium alloy that contains 24 wt% nb and 76 wt% v. the densities of pure niobium and vanadium are 8.57 and 6.10 g/cm3, respectively
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Physics, 22.06.2019 12:30
Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?
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Physics, 22.06.2019 17:10
What causes the development of most clouds and precipitation in the atmosphere?
Answers: 1
Answer the following questions related to ex. 35.1 and effective focal length: (a) redo example 35....
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