Question

Light from a Hydrogen lamp is focused through a diffraction
grating with 770 lines/cm and the diffraction pattern is shown on a
screen that is 5.30 m away. You notice in the pattern that there
are two distinct purple dots that are 16.46 cm and 17.70 cm from
the central maximum, corresponding to the first-order maxima for
two different wavelengths of light emitted by the lamp. What is the
difference between the two wavelengths (**in nm**)
corresponding to these purple dots in your pattern? **Round
your answer to 2 decimal places.**

Answer #1

The two most prominent wavelengths in the light emitted by a
hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light
from a hydrogen lamp illuminates a diffraction grating with 550
lines/mm , and the light is observed on a screen 1.7 m behind the
grating.
What is the distance between the first-order red and blue
fringes?

The two most prominent wavelengths in the light emitted by a
hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light
from a hydrogen lamp illuminates a diffraction grating with 500
lines per mm, and the light is observed on a screen 1.50 m behind
the grating.
What is the distance between the first-order red and blue
fringes?

The two most prominent wavelengths in the light emitted by a
hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). Light
from a hydrogen lamp illuminates a diffraction grating with 500
lines per mm, and the light is observed on a screen 1.50 m behind
the grating.
What is the distance between the first-order red and blue
fringes?

The two most prominent wavelengths in the light emitted by a
hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). Light
from a hydrogen lamp illuminates a diffraction grating with 500
lines/mm , and the light is observed on a screen 1.3 m behind the
grating.
What is the distance between the first-order red and blue
fringes? Answer in terms of cm
Express your answer to two significant figures and include the
appropriate units.

Helium atoms emit light at several wavelengths. Light from a
helium lamp illuminates a diffraction grating and is observed on a
screen 50.00 cm behind the grating. The emission at wavelength
501.5 nm creates a first-order bright fringe 21.90 cm from the
central maximum. What is the wavelength of the bright fringe that
is 26.63 cm from the central maximum?

When current is run through a hydrogen lamp it glows specific
wavelengths. The two primary wavelengths where light is emitted are
486nm (blue) and 656 nm (red). You use this light to illuminate a
diffraction grating with 500 lines/mm located 1.50 m from a screen.
What is the distance between the blue and red fringes? Which is
closer to the central maximum?

A grating has 810 lines per centimetre, and a flat screen is
perpendicular to the ray that makes the central peak of the
diffraction pattern. The screen is 2.20 m from the grating. If
light of two wavelengths, 630 nm and 670 nm, passes through the
grating, what is the separation on the screen between the
fourth-order maxima for the two wavelengths?

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.

Light of wavelength 600 nm shines on a diffraction grating that
has 400 lines per cm. The light emerging from the grating hits a
screen 50 cm wide so that the central maximum is exactly in the
middle of the screen. Assume that the screen is 3 m from the
grating.
How many maxima appear on the screen?
(a)
4
(b)
6
(c)
7
(d)
5
(e)
3

Suppose that you have a reflection diffraction grating with
n= 105 lines per millimeter. Light from a sodium lamp
passes through the grating and is diffracted onto a distant
screen.
Two visible lines in the sodium spectrum have wavelengths 498
nmand 569 nm. What is the angular separation ?? of the
first maxima of these spectral lines generated by this diffraction
grating?
How wide does this grating need to be to allow you to resolve
the two lines 589.00 and...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 2 minutes ago

asked 3 minutes ago

asked 8 minutes ago

asked 8 minutes ago

asked 11 minutes ago

asked 53 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago