# Diffraction chemistry | Chemistry homework help

1) What is the diffraction pattern for a horizontal array of lines?
a)a horizontal row of dots ,
b)a square array of dots,
c)a vertical column of dots
d)a rectangular array of dots where the spacing between the dots is greater in the horizontal direction
e)a rectangular array of dots where the spacing between the dots is greater in the vertical direction

2)What is the diffraction pattern for a vertical array of lines?
a) a horizontal row of dots
b) a square array of dots
c) a vertical column of dots
d) a rectangular array of dots where the spacing btwn the dots is greatier in the vert direction
e) same as d but in horizontal direction rather than vert.

3)What is the diffraction pattern for a rectangular array of dots where the spacing between dots is smaller along the horizontal axis than along the vertical axis?

4)What is the diffraction pattern for a rectangular array of dots where the spacing between dots is smaller along the vertical axis than along the horizontal axis?

5)What is the diffraction pattern for a rectangular array of dots where the spacing between dots is identical along both the vertical axis and the horizontal axis?

6)Choose all of the following that could fill in the blank correctly:

______ affects the appearance of the diffraction pattern.

a)The distance between the diffraction grating and the paper used to record the pattern…
b)The wavelength of light that is diffracted…
c)In X-ray diffraction, the arrangement of atoms in a crystal…
d)In X-ray diffraction, the distance between atoms in a crystal…
e)The distance between adjacent rows in a diffraction grating..
f)The distance between adjacent dots in a diffraction grating…
g)The color of laser light used to make the pattern…
h) The distance between the light source and the diffraction grating…

and the last one:

7) In the lab, you used a red industrial laser (λ = 632.8 nm) to create diffraction patterns from the arrays on the ICE slide. In order to create diffraction patterns from an array of atoms in a crystal, you will have to use light with

a)a longer wavelength than the red laser
b)a shorter wavelength than the red laser
c)about the same wavelength as the red laser
d)no particular wavelength

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