Chapter 37387P37.14The path difference between rays 1 and 2 is:δθθ=−ddsinsin12.For constructive interference, this path difference must be equal to an integral number ofwavelengths: ddmsinsinθθλ−=, ordmsinsinθθλbg.P37.15(a)The path difference =dsin and whenLy>>δµ==××=×=−−−ydL1 80 101 50 10140193 10193246...m mmmej.(b)δ=××=−−643 1030067...mm, or δλ=.(c)Point P will be a maximum since the path difference is an integer multiple of thewavelength.Section 37.3Intensity Distribution of the Double-Slit Interference PatternP37.16(a)IImaxcos=FHGIKJ22φ(Equation 37.11)Therefore,== =22064012911coscos..maxIIrad .
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .