Problem I You are diving in a pool and your friend gives you a signal outside th
ID: 306615 • Letter: P
Question
Problem I You are diving in a pool and your friend gives you a signal outside the pool. From your viewpoint, the signal a: appears to be further away than it really is a: closer than it really is. o: appears to be at the right distance. a: is reversed. Problem 2 A monochromatic light wave with a frequency fenters a glass prism coming from vacuum. Which of the following statements is a true statement? O: The light continuers to propagate at the speed of light. : The frequency fdecreases in the prism. O: The frequency fincreases in the prism. D: None of the above. Problem 3 Unpolarized light strikes a surface at the Brewster angle and it splits into a reflected and a refracted beam. You'll find that O: the reflected bearn is fully polarized perpendicular to the plane-of-incidence. O: the refracted beam is fully polarized perpendicular to the plane-of-incidence. O: both beams are unpolarized D: both beams are fully polarized, but in perpendicular directions.Explanation / Answer
1. when one is inside the swimming pool and some one from the outside signals somehing, due to refraction of light the person seems to be larger, and hence closer to us as compared to the actual distance of the person from the view
closer than really is
2. whe light enters prism , its speed decreases but the frequency changes
hence
none of the given options are correct
3. when unpolarised beam strikes the surface at brewster's angle then the reflected and the refracted beams are fully polarised and perpendicular to each other
hence
d. are fully polarised and in perpendicular directions to each other
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