Amonochromatic beam of light is sent through each of the following six optical slides.
rank these scenarios on the basis of the angle of the first interference maximum.
rank from largest to smallest. to rank items as equivalent, overlap them.

a. difraction grating with 1000 lines/cm
b. single slit slide with width .04mm
c. single slit slide with width .01mm
d. double slit slide with spacing .08mm
e. diffraction grating with 500 lines/cm
f. double slit slide with spacing .02mm

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.

if i write it on a piece of paper and submit it to you would that be okay

explanation: