Question

1) For a certain diffraction grating experiment using 500-nm light, the third dark fringe above the center line occurs at an angle of 30° above the center line. The screen is 6.00m from the slits. Why is this angle larger than the angle for the double-slit experiment above using the same wavelength of light? [Ignore any effects of single-slit diffraction.]

Group of answer choices

these diffraction grating slits are more closely-spaced

these diffraction grating slits are spaced farther apart from one another

the diffraction grating has more light passing through it

these diffraction grating slits are wider than the double-slit openings

2) If a particle has equation of motion x = A sin (ωt), what could be the net force on the particle?

Group of answer choices

F=-kx

F=+kx

F=-kx^3

F=-kx^2

F = sin(kx)

F = sin (ωt)

Answer 1