Question

Light at wavelength 589 nm from a sodium lamp is incident
perpendicularly on a grating with 40400 rulings over width 82 mm.
What are the first-order **(a)** dispersion *D*
and **(b)** resolving power *R*, the
second-order **(c)** *D* and
**(d)** *R*, and the third-order
**(e)** *D* and
**(f)** *R*?

Answer #1

Light at wavelength 589 nm from a sodium lamp is incident
perpendicularly on a grating with 41100 rulings over width 79 mm.
What are the first-order (a) dispersion D and (b) resolving power
R, the second-order (c) D and (d) R, and the third-order (e) D and
(f) R?

Consider the first order diffraction of 550 nm light from a 600
line/mm grating in a 0.35 meter focal length monochromator.
a) If the incident light is normal to the grating surface, what
is the angle of the diffracted light?
b) What is the dispersion at the exit slit? If the grating has a
width of 15 cm, what is the diffraction limited resolution (in nm)
of the monochromator at 550 nm?
c) What slit width does this correspond to?...

(a) Sodium vapor light averaging 589 nm in wavelength falls on a
single slit of width 3.83 µm. At what angle does it produce its
second minimum? (°)
(b) What is the highest-order minimum produced?

Orange Light, with a wavelength of 589 nm, from a distant street
lamp passes through a mesh screen in front of a window and creates
a diffraction pattern on a wall 5.6 mm away.
Part A - What angle would be measured between the central
maximum and the first order maxmium in the diffraction pattern?
Part complete
Assume the spacing between the wires in the mesh are 1 mm
apart.
0.050.05
Degrees
SubmitPrevious Answers
Incorrect; correct answer withheld by instructor
Part...

A.
Part 1A. Light of wavelength 640 nm is incident on a long narrow
slit. Find the angle of the first diffraction minimum if the width
of the slit is 1.5 mm. Answer in units of mrad.
Part 2A. Find the angle of the first diffraction minimum if the
width of the slit is 0.15 mm. Answer in units of mrad.
B.
Part 1B. Monochromatic light from a helium-neon laser
(wavelength 613.1 nm) is incident normally on a diffraction grating...

Light from a hydrogen source is incident on a diffraction
grating. The incident light contains four wavelengths: λl = 410.1
nm, λ2 = 434.0 nm, λ3 = 486.1 nm, and λ4 = 656.3 nm. The
diffraction grating has 410 lines/mm. Calculate the angles between:
λl and λ4 in the first-order spectrum λl and λ3 in the third-order
spectrum

A student views a neon light tube through a spectroscope, which
has a diffraction grating of 550 lines/mm and a viewing screen 25
cm from the grating. The observer sees the first-order
red line at a distance of 92.97 mm from the hole in spectroscope
viewing screen.
1. Calculate the wavelength of the red light coming from the
Neon light tube.
2. Calculate the maximum order of the interference fringe for
this wavelength.
3. Calculate the resolving power for this spectroscope...

A light beam (?0 = 589 nm) is incident perpendicularly to a
quartz plate, which is grinded such that its optic axis lies
parallel to the top surface of the plate. The indices of refraction
for the ordinary and extraordinary waves in quartz are no = 1.5443
and ne = 1.5534. i. Compute the wavelengths and frequencies of the
two waves. ii. What is the minimum thickness of such a plate to
serve as quarter-wave plate?

1. a. Light of wavelength 694.3 nm from a ruby laser is incident
on two narrow parallel slits cut in a thin sheet of metal. The
slits are separated by a distance of 0.088 mm. A screen is placed
1.5 m beyond the slits. Find the intensity, relative to the central
maximum, at a point on the screen 1.4 cm to one side of the central
maximum.
b. In a double-slit experiment, the intensity at the peak of the
central...

Light with a wavelength of 540 nm is incident on a diffraction
grating that has 8500 lines/cm.
a) What is the spacing of the slits?
b) Calculate the angles of the first two maxima.

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