Practice Quiz 3 - Practice Quiz 3 1 A Youngs double slit...

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Practice Quiz 3 1. A Young’s double slit has a slit separation of 2.50 × 10 5 m on which a monochromatic light beam is directed. The resultant bright fringes on a screen 1.00 m from the double slit are separated by 2.30 × 10 2 m. What is the wavelength of this beam? (1 nm = 10 9 m) a. 373 nm b. 454 nm c . 575 nm d. 667 nm 2. In a Young’s double-slit interference apparatus, the distance from the slits to the screen is doubled. The distance between adjacent light and dark fringes changes by a factor of: 3. A Young’s double-slit apparatus is set up where a screen is positioned 0.80 m from the double slits. If the distance between alternating bright fringes is 0.95 cm, and the light source has a wavelength of 580 nm, what is the separation of the double slits? (1 nm = 10 9 m) a. 2.8 × 10 5 m b . 4.9 × 10 5 m c. 5.6 × 10 5 m d. 6.0 × 10 5 m
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