A 486 nm laser beam shines on a diffraction grating. 5 bright
fringes are measured to...
A 486 nm laser beam shines on a diffraction grating. 5 bright
fringes are measured to be 60 cm apart at a Scren Distance of
1.327m. What is the grating constant in cm^-1
a laser beam passes through a diffraction grating and the
second- order bright spot is produced at an angle of 22.0 degree
from the main central axis. What is the highest order bright spot
that can be produced by this arrangement?
A scientist shines a beam of white light through a
diffraction grating (with 500linesmm), producing a diffraction
pattern. The spectrometer only looks at the m=1 bright spot! (The
m=2 spectrum will not fit in the view.)
a) Calculate the distance d between individual slits
(also called “lines”).
b) The white light spreads into its component colors.
For red light (=700nm), what is the diffraction angle θR (in
degrees)?
c) For violet light (=400nm), what is the diffraction angle
θV (in...
1)What color of laser light shines through a diffraction
grating with a line density of 500 lines/mm if the third maxima
from the central maxima (m=3) is at an angle of 45°? Show all work
in your answer.
Hint: Calculate the wavelength then use Table 1 to
identify the color.
2) How would the interference pattern produced by a
diffraction grating change if the laser light changed from red to
blue?
Laser light of some wavelength λ1 shines on a diffraction
grating with 285 lines/mm at normal incidence, producing a pattern
of maxima on a large screen 1.50 m from the grating. The first
principal maximum is observed to be at an angle of 8.20° from the
central maximum.
(a) Determine the wavelength of the incident light.
(b) A second laser of wavelength λ2 is added, and it is
observed that the third principal maximum of λ2 is at the same...
Laser light from argon ion laser of wavelength 488.0 nm passes
through a diffraction grating. The first bright spots occur at an
angle 6.726 degree left and right from the central maximum. How
many additional pares of bright spots are there beyond the first
bright spots?
Diffraction grating produces its third-order bright
band at an angle of 79.4 ∘ for light of wavelength
791 nm .
Part A
Find the number of slits per centimeter for the
grating.
n =
Part B
Find the angular location of the first-order bright
band.
θ1 =
Part C
Find the angular location of the second-order bright
band.
θ2 =
Part D
Will there be a fourth-order bright band?
1. Short wavelengths of light passed through a diffraction
grating create fringes that are _____ than long wavelengths of
light.
more spread out
more compact brighter
None of the above
12. The spacing of the diffraction pattern on a viewing screen
does not depend on the distance from the diffraction grating to the
screen.
True
False
2. A transmission diffraction grating produces a diffraction
pattern with the first order angle at 35 degrees when light with a
wavelength of 600...
Light shines on a diffraction grating with a 4000 rulings
(slits) per cm, which is immersed in water (refractive index=1.33),
resulting in a 3rd order spectral line at a diffraction
angle of 35 degrees. What is the wavelength of the light in
air?
To analyze the resulting pattern of bright and dark
fringes when laser light passes through a single slit, what
fundamental principle of light propagation is used?
A diffraction grating is illuminated first with red light of
wavelength 600 nm and then with light of an unknown wavelength. The
fifth-order maximum of the unknown wavelength is located exactly at
the third-order maximum of the red light. What is the unknown
wavelength?