Physics, 20.08.2019 23:30, jojo10092003
The reflective surface of a cd consists of spirals of equally spaced grooves. if you shine a laser pointer on a cd, each groove reflects circular waves that look exactly like the circular waves transmitted by the slits in a grating. you shine a green laser pointer (λ = 532 nm) perpendicularly to the surface of a cd and observe a diffraction pattern on a screen that is 3.0 m away from the cd. you observe that the 1st order maximum (m = 1)appears 1.1 m away from the central maximum (m = 1).part a. determine the distance between the adjacent grooves on a cd. part b. estimate the total number of bits (units of information) on a cd, assuming that each bit occupies a square with sides that are equal to the distance between the adjacent grooves. a cd is 12 cm in diameter and has an unused central zone 4.5 cm in diameter.
Answers: 2
Physics, 21.06.2019 13:40, tanoah7623
Niobium forms a substitutional solid solution with vanadium. compute the number of niobium atoms per cubic centimeter for a niobium-vanadium alloy that contains 24 wt% nb and 76 wt% v. the densities of pure niobium and vanadium are 8.57 and 6.10 g/cm3, respectively
Answers: 1
Physics, 23.06.2019 08:30, Anybody6457
The momentum of a man riding his bicycle downhill can be calculated. the bicycle and the man have a combined mass of 40 kg. the velocity of the bicycle is 10 m/s. calculate the momentum.
Answers: 1
The reflective surface of a cd consists of spirals of equally spaced grooves. if you shine a laser p...
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