Question
In: Physics
When you shine a laser with unknown wavelength through a diffraction grating with 1000 slits/mm, you...
When you shine a laser with unknown wavelength through a diffraction grating with 1000 slits/mm, you observe the m = 1 bright fringe on the screen with an angle of 26 degrees away from the center of the grating.
What is the wavelength of your laser?
Plug in the relevant numbers to solve for your laser pointer photon wavelength in nanometers.
If the new diffraction bright fringe is at a LARGER angle than the diffraction bright fringe from the first grating, is the new diffraction spacing larger or smaller than the old diffraction line spacing?
Similarly, what if the new diffraction bright fringe is at a SMALLER angle?
Solutions
genius_generous answered 7 months agoRelated Solutions
A student used a diffraction grating with 633 lines/mm to determine an unknown wavelength of light....
A student used a diffraction grating with 633 lines/mm to
determine an unknown wavelength of light. The light passed through
the grating, and the pattern was observed on a paper placed 90.0 cm
past the grating. The distance from the center bright spot to the
second bright spot from the center was measured to be 71.9 cm. What
was the wavelength of light in nanometers (nm)? (State answer in
nanometers as a whole number with no digits right of decimal.)
Laser light from argon ion laser of wavelength 488.0 nm passes through a diffraction grating. The...
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?
Laser light of some wavelength λ1 shines on a diffraction grating with 285 lines/mm at normal...
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...
A 1.2-cm-wide diffraction grating has 1000 slits. It is illuminated by light of wavelength 510 nm....
A 1.2-cm-wide diffraction grating has 1000 slits. It is
illuminated by light of wavelength 510 nm. What are the angles of
the first two diffraction orders? Answer = ∘,∘
A 1.2-cm-wide diffraction grating has 1000 slits. It is illuminated by light of wavelength 510 nm....
A 1.2-cm-wide diffraction grating has 1000 slits. It is
illuminated by light of wavelength 510 nm. What are the angles of
the first two diffraction orders? Answer = ∘,∘
A Laser light is passed through a grating having 300 lines/mm and diffraction pattern is observed...
A Laser light is passed through a grating having 300 lines/mm
and diffraction pattern is observed at 51.5 cm, 53.5cm and 55.5cm
respectively. The diffraction pattern having separation of
103mm,107mm and 111mm between the maximum and minimum interference
correspondingly. Calculate the wavelength of laser? Also calculate
the percentage error if the actual wavelength of laser is
660nm.
Suppose that you shine light from a laser through two slits that are placed one in...
Suppose that you shine light from a laser through two slits that
are placed one in front of the other, separated by 0.6mm. The width
of each slit is 0.12mm. The light will travel from the laser,
through the slits, and onto a screen 1.5m away.
a. Predict what you will observe on the screen, and compare it
to what you would expect from single-slit diffraction.
b. If ray (geometrical optics) accurately described this
siutation, what would the pattern on...
A diffraction grating is made up of slits of width a with separation d. The grating...
A diffraction grating is made up of slits of width a with
separation d. The grating is illuminated by monochromatic plane
waves of wavelength λ at normal incidence. What is the angular
width of a spectral line observed in the first order if the grating
has N slits? State your answer in terms of the given variables. Δθw
=
a diffraction grating has 650 slits/mm. what is the highest order that contains the entire visible...
a diffraction grating has 650 slits/mm. what is the highest
order that contains the entire visible spectrum?
A 500 lines per mm diffraction grating is illuminated by light of wavelength 620 nm ....
A 500 lines per mm diffraction grating is illuminated by light
of wavelength 620 nm .
Part B
What is the angle of each diffraction order?
Enter your answers using two significant figures in ascending
order separated by commas.
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