A laser beam of wavelength 650 nm illuminates two slits 0.57 mm apart. An interference pattern is observed on a wall 5 m away from the screen. The central max has an intensity of 100 W/m2. If the slits are very narrow: (a) Determine the distance (in cm) between the first and second maxima on the wall. (b) Determine the path difference (in nm) between the waves as they reach point P on the wall located 1.3 cm away from the central max. At this point, do the waves interfere constructively, destructively or neither? (c) Calculate the intensity of the light at point P. If instead each slit has a with of 0.25 mm:
A laser beam of wavelength 650 nm illuminates two slits 0.57 mm apart. An interference pattern is observed on a wall 5 m away from the screen. The central max has an intensity of 100 W/m2. If the slits are very narrow: (a) Determine the distance (in cm) between the first and second maxima on the wall. (b) Determine the path difference (in nm) between the waves as they reach point P on the wall located 1.3 cm away from the central max. At this point, do the waves interfere constructively, destructively or neither? (c) Calculate the intensity of the light at point P. If instead each slit has a with of 0.25 mm:
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A laser beam of wavelength 650 nm illuminates two slits 0.57 mm apart. An interference pattern is observed on a wall 5 m away from the screen. The central max has an intensity of 100 W/m2.
If the slits are very narrow:
(a) Determine the distance (in cm) between the first and second maxima on the wall.
(b) Determine the path difference (in nm) between the waves as they reach point P on the wall
located 1.3 cm away from the central max. At this point, do the waves interfere constructively,
destructively or neither?
(c) Calculate the intensity of the light at point P.
If instead each slit has a with of 0.25 mm:
(d) Calculate the intensity of the light at point P.
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