problems_41 - PHY2061 R. D. Field Chapter 41 Problems...

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PHY2061 R. D. Field Problems Chapter 41 Page 1 of 4 Chapter 41 Problems Problem 1: Light from a small region of a 100 Watt incandescent bulb passes through a yellow filter and then serves as the source for a Young’s double-slit interference experiment. Which of the following changes would cause the interference pattern to be more closely spaced? (a) Use a blue filter instead of a yellow filter (b) Use a 10 Watt bulb (c) Use a 500 Watt bulb (d) Move the bulb closer to the slits (e) Move the slits closer together Problem 2: The characteristic yellow light of sodium lamps arises from two prominent wavelengths in its spectrum, at approximately 589.0 nm and 589.6 nm , respectively. The light passes through a double slit and falls on a screen 10 m away. If the slits are separated by a distance of 0.01 mm , how far apart are the two second-order bright fringes on the screen ( in mm )? Problem 3: A monochromatic light placed equal distance from two slits a distance d apart produces a central bright spot with a width of 1 cm on a screen located a distance L away, as shown in the
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problems_41 - PHY2061 R. D. Field Chapter 41 Problems...

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