the sketch shows a concave lens and an object on its optical axis, Quizzes of Physics

Download the sketch shows a concave lens and an object on its optical axis and more Quizzes Physics in PDF only on Docsity! Question 1 1 pts The sketch shows a concave lens and an object on its optical axis. Where will the position of image be (in cm with correct sign) if the object is 22 cm from the center of the lens and the focal length of the lens is 13 cm? Object Lens F [\ F Question 3 1 pts You are looking at a calm water surface by standing on a side of a lake. If you want to see only polarized lights entering your eyes, at what should be the incident angle of the rays arriving to the lake surface? Assume refractive index of air is 1.0 and refractive index of water is 1.48  Answer Question 1. v = 31.78 cm Question 3. Øi = 34° Question 5. Ø1 = 40.88° Explanation Question 1. Let u = 22cm , distance of the object from the center f = 13 cm , focal length Required: v = ?, position of he image Solution : 1/f = 1/v + 1/u 1/13 = 1/v + 1/22 1/v = 1/13 -1/22 1/v = 0.031 v = 1/0.031 v = 31.78 cm