Question

a diffraction grating has 8000lines/cm and is exposed
to light of 500nm the first order maxims occurs at

Answer #1

A diffraction grating has 2500 lines/cm lines/cm . What is the
angle between the first-order maxima for red light ( λ=680nm
λ=680nm ) and blue light ( λ=410nm λ=410nm )?

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?...

Light from an argon laser strikes a diffraction grating that has
4,917 lines per cm. The first-order principal maxima are separated
by 0.4 m on a wall 1.62 m from the grating. What is the wavelength
of the laser light in nm? Enter an integer.

A diffraction grating has 1.3 ?m spacing. Find the
first-order diffraction angles for the following wavelengths.
Part A: Find the first-order diffraction angles for orange light
(615 nm ).
Part B: Find the first-order diffraction angles for green light
(540 nm ).
Part C: Find the first-order diffraction angles for red light
(680 nm ).

A-The first-order line of 584 nm light falling on a diffraction
grating is observed at a 16.6° angle. Calculate the number of lines
per centimetre on the grating.
B- At what angle will the second-order line be observed?

A 2.0-cm wide diffraction grating has 1000 slits. It is
illuminated by light of wavelength 630nm.
What are the angles of the first two diffraction orders?

24.73 . LIght is incident on a diffraction grating with 8600
lines/cm , and the pattern is viewed on a screen 2.5 m from the
grating. The incident light beam consists of two wavelengths,
4.5×10?7 m and 6.9×10?7 m .
Part A Calculate the linear distance between the first-order
bright fringes of these two wavelengths on the screen.

A
student shines a monochratic light through a diffraction grating
with 4,000 lines per cm. the distance between the grating and the
screen is 1.2 m. The student measures the distance between the
first order fringe and central maxima at 0.2cm. What is the
frequency of the monochromatic light? Show work.

With a diffraction grating that has 3800 slits/cm, a
monochromatic light source produces 2nd order bright fringe at an
angle of 22
(a) What is the wavelength of the source? Express this in meters
and nm.
(b) Draw a diagram indicating the 1st and 2nd order bright
fringes. Indicate all the parameters.
(c) If the screen is 0.3-m away, how far (in cm) is 2nd order
bright fringe from the center?
please explain

White light is spread out into its spectral components by a
diffraction grating. If the grating has 2055 lines per centimeter,
at what angle does red light of wavelength 640 nm appear in
first-order spectrum? (Assume that the light is incident normally
on the grating.)
°

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