Question

A pair of slits, separated by 0.1 mm, is illuminated by light having a wavelength of 500 nm. An interference pattern is observed on a screen 1.20 m from the slits. (a) Draw the diagram of the double slits and determine how far apart will adjacent bright interference fringes on the screen? (b) What are the angles of the first and second order fringes with respect to the zeroth order fringe? (c) Determine the position of the first and second order dark fringes.

Answer #1

A pair of narrow, parallel slits separated by 0.300 mm is
illuminated by green light (? = 546.1 nm). The interference pattern
is observed on a screen 1.10 m away from the plane of the parallel
slits.
(a) Calculate the distance from the central maximum to the first
bright region on either side of the central maximum.
________________mm
(b) Calculate the distance between the first and second dark
bands in the interference pattern.
________________mm

Double-Slit Interference
A pair of slits, separated by 0.120 mm, is illuminated by light
of wavelength 643 nm. An interference pattern is observed on a
screen 112 cm from the slits. Consider a point on the screen
located at y = 2.10 cm from the central maximum of the pattern…
a) What is the path difference (in nm) for the two slits at
location y?
b) What is the path difference in waves?
c) Is this a maximum, a minimum...

Two narrow slits are illuminated by a laser with a wavelength of
578 nm. The interference pattern on a screen located x = 4.50 m
away shows that the third-order bright fringe is located y = 9.10
cm away from the central bright fringe. Calculate the distance
between the two slits.
First you have to calculate the angle of the maximum. Then you
can use the formula for bright fringes of double slits.
Incorrect.
Tries 2/20
Previous Tries
The screen...

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

Laser light of an unknown wavelength falls incident on a pair of
slits separated by 25.0 µm. This produces an interference pattern
on a screen 1.80 m away with the first-order bright fringe being
39.7 mm from the center of the central maximum. What is the
wavelength of the laser light?

A monochromatic light with wavelength 480.0 nm strikes a
pair of narrow slits with spacing
0.100 mm. The first dark fringe is formed on a screen at
a vertical distance of 1.20 cm from the center of a screen placed
in front of the slit.
How far away is the screen placed
What is the distance on the screen from the center of
the interference pattern to the m =
3 bright fringe?
What is the shortest distance from the...

Two narrow slits are illuminated by a laser with a wavelength
of 543 nm. The interference pattern on a screen located x = 4.50 m
away shows that the third-order bright fringe is located y = 7.20
cm away from the central bright fringe. Calculate the distance
between the two slits. ("1st order" means m=1, "second order" means
m=2, etc).

Two slits are separated by 0.320 mm. A beam of 482.0 nm light
strikes the slits, producing an interference pattern on a screen.
The screen is located 2.30 m from the slits. Find the distance from
the first dark fringe on one side of the central maximum to the
second dark fringe on the other side.
Please write clearly and legibly!

1a. Coherent red light is shone on a pair of slits separated by
d, and on a grating of many slits, each neighboring pair
also separated by d. The locations of bright fringes
are...
a. shifted to smaller angles for the double-slit
b. the same for both
c. shifted to larger angles for the double slit
1b. Red light and green laser light illuminate a diffraction
grating simultaneously. The distance between red and green maxima
on a distant screen in...

Orange light with ? = 615 nm strikes a pair of slits
separated by 0.620 mm .
Part A: On a screen 1.40 m away, what's the distance between the
central maximum and one of the fourth dark fringes?
Part B: On a screen 1.40 m away, what's the distance between the
third bright fringe on one side of the central maximum and the
third dark fringe on the other?
Express your answer with the appropriate units.

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