In a Young's double-slit experiment, two rays of monochromaticlight emerge from the slits and meet at a point on a distantscreen. The point on the screen where these two rays meet is theeighth-order bright finge. The different in the distances that thetwo rays travel is 4.57E-6m. What is the wavelength (in nm) of themonochromatic light? Please Help me...I'm not sure where to start. In a Young's double-slit experiment, two rays of monochromaticlight emerge from the slits and meet at a point on a distantscreen. The point on the screen where these two rays meet is theeighth-order bright finge. The different in the distances that thetwo rays travel is 4.57E-6m. What is the wavelength (in nm) of themonochromatic light? Please Help me...I'm not sure where to start.
Explanation / Answer
for double slit interference: pathdifference = m . In your case, you are given the path differenceand m = 8 (eighth order brightfringe) so . 4.57 x10-6 = 8 . = 5.713 x 10-7 m = 571.3 nm is the wavelength