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Question 1: Orange light with strikes a pair of slits separated by 0.580 mm. On a screen 1.20 m away, what is the distance between
(a) the two second-order bright fringes;
(b) the central maximum and one of the fourth dark fringes;
(c) the third bright fringe on one side of the central maximum and the third dark fringe on the other?
Question 2: You are doing a double-slit experiment with two different colors. You notice that the second-order bright fringe using 680-nm red light is in the same place as the third-order bright fringe of the other color.
(a) What is the wavelength of the color?
(b) What color is it?
A 1600 kW heat engineoperates at 21% efficiency. The heat energy expelled at thelow temperature is absorbed by a stream of water that enters thecooling coils at 20°C. determine the increase in temperature of the water
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