Coefficient of linear expansion for brass 2010-5 degc-1

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Reference no: EM13614975

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 degC), the first interference dark fringes occur at +/- 32.5 degrees from the original direction of the laser beam when viewed from some distance. If this sheet is now slowly heated up to 135degC, by how many degrees do these dark fringes change position? Coefficient of linear expansion for brass = 2.0*10^-5 degC^-1). Ignore any effects that might occur due to change in the thickness of the slits.

Reference no: EM13614975

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