Question

A double slit is illuminated simultaneously with light of wavelength 680 nm and light of an unknown wavelength. The mm = 4 bright fringe of the unknown wavelength overlaps the mm = 3 bright orange fringe.

What is the unknown wavelength?

Answer #1

A Young’s double-slit apparatus is illuminated with 669 nm light
and the screen is positioned 2.2 m from the double slits. If the
spacing between the two slits is 0.33 mm …
Part a) What is the angle from the center line (the line from
the center of the two slits to the central bright spot) to the
second order bright spot?
Part b) What is the distance from the zeroth order bright fringe
and on the screen to the...

A double-slit experiment uses coherent
light of wavelength 633 nm with a slit separation of 0.100 mm and a
screen placed 2.0 m away.
(a) How wide on the screen is the central bright fringe?
(b) What is the distance on the screen between first-order and
second-order bright fringes?
(c) What is the angular separation (in radians) between the
central maximum and the first-order maximum?

1. A 680 nm laser illuminates a double slit apparatus with a
slit separation distance of 7.83 μm. On the viewing screen, you
measure the distance from the central bright fringe to the 2nd
bright fringe to be 88.2 cm. How far away (in meters) is the
viewing screen from the double slits?
2. A 600 nm laser illuminates a double slit apparatus with a
slit separation distance of 3.55 μm. The viewing screen is 1.50
meters behind the double...

In a Young's double-slit experiment the wavelength of light used
is 493 nm (in vacuum), and the separation between the slits is 1.5
× 10-6 m. Determine the angle that locates
(a) the dark fringe for which m = 0,
(b) the bright fringe for which m = 1,
(c) the dark fringe for which m = 1, and
(d) the bright fringe for which m =
2.

In a Young's double-slit experiment the wavelength of light used
is 489 nm (in vacuum), and the separation between the slits is 2.4
× 10-6 m. Determine the angle that locates (a) the dark fringe for
which m = 0, (b) the bright fringe for which m = 1, (c) the dark
fringe for which m = 1, and (d) the bright fringe for which m =
2.

In a Young's double-slit experiment the wavelength of light used
is 472 nm (in vacuum), and the separation between the slits is 1.4
× 10-6 m. Determine the angle that locates (a) the dark fringe for
which m = 0, (b) the bright fringe for which m = 1, (c) the dark
fringe for which m = 1, and (d) the bright fringe for which m =
2.

In a Young's double-slit experiment the wavelength of light used
is 457 nm (in vacuum), and the separation between the slits is 1.7
× 10-6 m. Determine the angle that locates (a) the dark fringe for
which m = 0, (b) the bright fringe for which m = 1, (c) the dark
fringe for which m = 1, and (d) the bright fringe for which m =
2.

In a Young's double-slit experiment the wavelength of light used
is 469 nm (in vacuum), and the separation between the slits is 2.1
× 10-6 m. Determine the angle that locates
(a) the dark fringe for which m = 0,
(b) the bright fringe for which m = 1,
(c) the dark fringe for which m = 1, and
(d) the bright fringe for which m =
2.

Bichromatic light of wavelengths λ1=572λ1=572 nm and
λ2=647λ2=647 nm is incident on a double-slit plate. The separation
between the slits dd and the width of each slit are not given. The
distance between the viewing screen and the plate is
L=1.0L=1.0m.
The first interference maximum of the 572 nm-wavelength of light
is observed at y1=4.4y1=4.4 mm. What is the slit spacing, dd?
Using the far-field approximation, calculate the separation
between the m=3m=3 interference maxima of λ1λ1 and λ2λ2.
There is...

A double-slit set up produces bright fringes for sodium light (
= 589 nm) such that the first bright fringe is at an angle of
0.20°.
(a) What is the slit separation?
(b) Suppose the two slits, the screen, and intervening space are
immersed in water, but the source of the sodium light stays outside
the water. What will be the wavelength of the sodium light once it
enters the water?
(c) What is the location of the first bright...

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