Question

Planck's constant h = 6.63x10-34 JS = 4.14 x 10" eV.s 1.) An unpolarized light beam travelling in the tx direction passes through two ideal linear polarizers, as shown. The transmit axis of Polarizer 1 is fixed to be the z axis. The transmit axis of Polarizer 2 is aligned at angle = 60° to the positive z axis. The light intensity at point A is measured to be 16 W/m. linear linear polarizer 1 polarizer 2 a.) (2 pts) At point A, along what axis does the electric field of the light beam oscillate? (answer "unpolarized" if the light at point A is unpolarized) unpolarized b) (3 pts) What is the intensity of the incident unpolarized light beam? transmission axisz transmission axis at angle relative to + c)(3 pts) What is the light intensity at point B? d) (2 pts) At what angle 0, relative to the +Z-axis, would you need to align the transmit axis of Polarizer 2 to make the light intensity at point B zero? 2.) In an experiment, you need to place a mirror 0.35 m in front of a candle to form an upright image of the candle. a) (2 pts) If you want the upright image to be larger than the object, what type of a mirror should you use: converging, diverging, or flat? b) (3 pts) From a), if the image is formed 0.75 m behind the mirror, what is the focal length of the mirror (answer sign and magnitude)? c) (2 pts) If you want the upright image to be smaller than the object, what type of a mirror should you use: converging, diverging, or flat? d) (3 pts) From c), if the image is formed 0.15 m behind the mirror, what is the focal length of the mirror (answer sign and magnitude)?

Answer 1

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