Coherent light that contains two wavelengths 660 nm and 470, Ask an Expert

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Q. Coherent light that contains two wavelengths, 660 nm and 470 nm, passes through two narrow slits with a separation of 0.280 mm and an interference pattern is observed on a screen which is a distance 4.40 m from the slits.

Q. A loudspeaker of mass 21.0 is suspended a distance of 1.00 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of 2.90.

What is the tension in each of the cables?

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Category:- Physics
Reference No.:- M9273629

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