Physics, 06.02.2022 14:00 jelani4brown
A ray from a fixed object is incident of a plane mirror at an angle of 20°.If the mirror is rotated through 30°,by how many degree will the reflected ray be. show workings please
Answers: 3
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An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2
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Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f
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A ray from a fixed object is incident of a plane mirror at an angle of 20°.If the mirror is rotated...
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