At most, how many bright fringes can be formed on each side of the central bright…

PHYSICS · Single correct · CBSE · Physics · Wave Optics · Wave Optics

Problem

At most, how many bright fringes can be formed on each side of the central bright fringe, not counting the central bright fringe, when light of wavelength 625 nm625\text{ nm} falls on a double slit whose spacing is 1.97×10−6 m1.97\times10^{-6}\text{ m}? (1) 11 (2) 22 (3) 33 (4) 44

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