Adiffraction grating is made up of slits of width = 340 nm with separation = 790 nm. the grating is illuminated by monchromatic plane waves of wavelength λ = 520 nm at normal incidence. a. how many maxima are there in the full diffraction pattern?
b. what is the width of a spectral line observed in the first order if the grating has 500 slits? (deg)
Answers: 3
Physics, 21.06.2019 21:00, jjxt126
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
Answers: 2
Physics, 22.06.2019 19:30, FireFlight
Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.
Answers: 2
Adiffraction grating is made up of slits of width = 340 nm with separation = 790 nm. the grating is...
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