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31 August, 20:28

Coherent light of wavelength 519 nm passes through two slits. In the resulting interference pattern on a screen 4.6 m away, adjacent bright fringes are 4.0 mm apart. What is the angular separation (in radians) between the central maximum and the first-order maximum?

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  1. 31 August, 21:50
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    angular separation = 0.04981868 deg

    Explanation:

    Given data

    wavelength λ = 519 nm

    bright fringes y = 4.0 mm

    interference D = 4.6 m

    to find out

    angular separation

    solution

    we will find angular seperation between central maximum and the first order maximum that is

    angular separation = bright fringes / interference

    put here all value

    angular separation = 8.695 * 10^ (-4) rad

    angular separation = 0.04981868 deg
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