Monochromatic light falls on a slit that is 2.30×10−3mm wide. part a if the angle between the first dark fringes on either side of the central maximum is 34.0 ∘ (dark fringe to dark fringe), what is the wavelength of the light used?

Wavelength,

Explanation:

Given that,

Width of the slit,

The angle between the first dark fringes on either side of the central maximum is 34 degrees

To find,

The wavelength of the light used.

Solution,

The equation of maxima is given by :

n = 1 here

So, the wavelength of the light used is . Hence, this is the required solution.

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.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it