Question

Consider a two-slit interference pattern, with monochromatic
light of wavelength *?*.

(a) What is the path difference ?? for the third bright fringe?
Give your answer in terms of the wavelength of the light.

*____?*

(b) What is the path difference ?? for the third dark fringe above
the central bright fringe? Give your answer in terms of the
wavelength of the light.

*____?*

Answer #1

In the experiment of double slit interference, the expression for path difference can be written as,

**Part (a):** The condition for bright fringes
is,

Therefore, path difference for third bright fringe, that is m = 3, is,

**Part (b):** The condition for dark fringe is,

Therefore the path difference for third dark fringe above the central bright fringe, that is m = 2, is,

Two narrow slits are used to produce a double-slit interference
pattern with monochromatic light. The slits are separated by 8 mm,
and the interference pattern is projected onto a screen 7 m away
from the slits. The central bright fringe is at a certain spot on
the screen. Using a ruler with one end placed at the central
fringe, you move along the ruler passing by two more bright fringes
and find that the next bright fringe is 23.5 mm...

With a monochromatic light of wavelength ?? = 532 nm A
double-slit interference pattern is produced on a screen as shown
in the picture. The slit separation ?? is 0.10 mm, and the
slit–screen separation ?? is 50 cm. Assume that the angle θ (from
the slit center to the maxima and minima) small enough to permit
use of the approximations sin θ ≈ tan θ ≈ θ, in which θ is
expressed in radian measure.
a. A strip of...

Light with a wavelength of 633 nm passes through a slit 6.38
?m wide and falls on a screen 1.60 m away. Find the
distance on the screen from the central bright fringe to the third
dark fringe above it. ___ cm
Monochromatic light passes through two slits separated by a
distance of 0.0332 mm. If the angle to the third maximum above the
central fringe is 3.21 degrees, what is the wavelength of the
light? __ nm

Light of wavelength 670 nm falls on two slits and produces an
interference pattern in which the third-order bright fringe is 45
mm from the central fringe on a screen 3.3 m away.
What is the separation of the two slits?

A double-slit experiment produces an interference pattern on a
screen 2.8 m away from slits. Light of wavelength λ= 460 nm falls
on the slits from a distant source. The distance between adjacent
bright fringes is 6.2 mm.
A) Find the distance between the two slits
B) Determine the distance to the 6th order dark fringe from the
central fringe

A double slit interference pattern is created by two narrow slit
spaced 0.025 mm apart on a screen 2 m away from the slits.
a. If the seventh bright fringe on the detector is 10 cm away
from the central fringe, what is the wavelength of light (in nm)
used in this experiment?
b. What is the angle of the diffraction order?

A double slit experiment produces an interference pattern on a
screen 2.8 m away from the slits. Light of wavelength = 480 nm
falls on the slits from a distant source. The distance between
adjacent bright fringes is 5.8 mm.
a) find the distance between the two slits. Express your answer
using 3 significant figures.
b) determine the distance to the 6th order dark fringe from the
central fringe. Express your answer using three significant
figures.

1. monochromatic light of wavelength 540 nm from a source passes
through a slit that is 0.03mm wide. What is the width of the
central bright fringe on the diffraction pattern formed on a screen
placed at a distance of 2.00 m away from the slit?
2. Light of wavelength 500 nm is incident on a single slit of
width 0.02 mm to produce a diffraction pattern with intensity
4.00×10^-4 W/m^2 at the center of a screen placed far away...

In a double-slit interference experiment, the slit separation is
2.29 μm, the light wavelength is 532 nm, and the separation between
the slits and the screen is 4.42 m. (a) What is
the angle between the center and the third side bright fringe? If
we decrease the light frequency to 94.8% of its initial value,
(b) does the third side bright fringe move along
the screen toward or away from the pattern's center and
(c) how far does it move?

In a
double-slit interference pattern, light from the top slit travels a
distance of 4.0 m between the slit and a point on the screen. How
far does light from the bottom slit travel to that point
if
there is a bright fringe at that point? What about if there is a
dark fringe at that point?
Choose from this
list:
A. 4.0 m +
2.2λ
B. 4.0 m +
3.5λ
C. 4.0 m +
3.8λ
D. 4.0 m +...

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