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Physics Ray Optics Level: High School

Young's Double slit experimentation

Two slits are separated by 2.00 x 10^-5 m. They are illuminated by light of wavelength 5.60 x 10^-7 m. If the distance from the slits to the screen is 6.00 m , What is the separation between the central bright fringe and the third dark fringe ? a. 0.421 m b. 0.224 m c. 0.168 m d. 0.084 m e. 0.070 m