Double-Slit Interference: A pair of narrow slits that are 1.8 mm apart is illuminated by a monochromatic coherent light source. A fringe pattern is observed on a screen 4.8 m from the slits. If the wavelength of the monochromatic light is 450 nm, what is the angular separation between adjacent dark fringes on the screen, measured in milliradians?
A. 0.15 mrad
B. 0.20 mrad
C. 0.25 mrad
D. 0.30 mrad
E. 0.36 mrad
Answer: C
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A) 100 million light years B) 100 light years C) 40 thousand light years D) 40 billion light years
Which of the following statements about an ellipse is not true?
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Which of the following statements is correct?
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