Physics, 13.12.2019 05:31 deidaralove90
Abeam of green light is diffracted by a slit of width 0.55mm. the diffraction pattern forms on a wall 2.06 m beyond the slit. the distance between the positions of zero intensity on both sidesof the central bright fringe is 4.1 mm. what is the wavelength ofthe laser light in nm? hint: dark fringes in the diffraction pattern produced by a singleslit with width w are found at angles θ for whichwsinθ = mλ.first dark fringe on either side: m = 1wsinθ = λ.w = 0.55 10-3 m. the distance between the positions of zero intensity on bothsides of the central bright fringe is 4.1 mm, therefore thedistance between the center and a dark fringe on either side is z =(4.1/2) 10-3 m = 2.05 10-3 m. sinθ= z/l with l = 2.06 m. solve for λ. the answer will have units of m. divide by 10-9 to convert to nm.
Answers: 2
Physics, 22.06.2019 01:10
Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)
Answers: 3
Physics, 22.06.2019 16:10
Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)
Answers: 1
Physics, 22.06.2019 16:30
The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db
Answers: 3
Abeam of green light is diffracted by a slit of width 0.55mm. the diffraction pattern forms on a wal...
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