Coefficient of linear expansion for brass ignore any

Reference no: EM13614508

A very thin sheet of brass contains two thin parallel slits. When a laser beam shines on these slits at normal incidence and room temperature (20.0 ), the first interference dark fringes occur at 32.5 from the original direction of the laser beam when viewed from some distance. If this sheet is now slowly heated up to 135 , by how many degrees do these dark fringes change position? Coefficient of linear expansion for brass .Ignore any effects that might occur due to change in the thickness of the slits. (Hint: Since thermal expansion normally produces very small changes in length, you can use differentials to find the change in the angle.) Express your answer using two significant figures.

Reference no: EM13614508

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