Monochromatic, in phase light of wavelength X = 996mm is incident on a piece of metal with either one or two slits on it - it is difficult to see to determine which. The diffraction pattern is observed on a viewing screen that is located 83.5cm away from the metal plate. The first two minima are measured to be 28.7cm and 71.6cm away from the central maxima. What is the brightness of the light at a distance of 39.5cm from the central maxima, relative to the brightness of the central maxima? ×10-3 Note: Brightness is proportional to the SQUARE of the amplitude. For double slit, this means 2 I = I (cos(zd sin 6))². For single slit, t this means I = I, sin n( xd sin (14100) is the maximum brightness, and d is the characteristic spacing of the slit(s). In both of these. Io

Monochromatic, in phase light of wavelength X = 996mm is incident on a piece of metal with either one or two slits on it - it is difficult to see to determine which. The diffraction pattern is observed on a viewing screen that is located 83.5cm away from the metal plate. The first two minima are measured to be 28.7cm and 71.6cm away from the central maxima. What is the brightness of the light at a distance of 39.5cm from the central maxima, relative to the brightness of the central maxima? ×10-3 Note: Brightness is proportional to the SQUARE of the amplitude. For double slit, this means 2 I = I (cos(zd sin 6))². For single slit, t this means I = I, sin n( xd sin (14100) is the maximum brightness, and d is the characteristic spacing of the slit(s). In both of these. Io