In the physics we have Helium-Neon lasers that produce a wavelength of 632 nm. Suppose that we have a diffraction grating that is unlabeled (so we don’t know its slit spacing) and a violet laser pointer whose wavelength we wish to determine. We then shine the Helium-Neon laser on the grating, project the diffraction pattern onto a screen that is 1.00 m from the grating and measure the positions of the diffraction maxima on the screen. Next we remove the Helium-Neon laser and repeat the process using the violet laser pointer with the same grating and screen. Suppose that we observe that the second order maximum of the Helium-Neon laser’s diffraction pattern is located at the same spot on the screen as the third order maximum of the violet laser pointer’s diffraction pattern, which is 33.3 cm from the center of the central bright fringe (which is at the same location for both diffraction patterns).
(a) Determine the wavelength produced by the laser pointer.
(b) Determine the slit spacing for the diffraction grating.
(c) Calculate the number of slits per millimeter on the grating.
(d) How many maxima are there in the diffraction pattern of the Helium-Neon laser?
(e) How wide must the screen be so that all of the maxima are projected onto the screen?
In the physics we have Helium-Neon lasers that produce a wavelength of 632 nm. Suppose that...
A helium–neon laser produces light with a wavelength of 638 nm. When this light is shone through a double slit apparatus, an interference pattern is produced on a screen 2.0 m away, with the distance between the first and seventh nodal lines being 5.0 cm. (a) Determine the distance between the slits. (b) What is the maximum number of bright fringes that could possibly appear on the screen?
Coherent light of wavelength 633 nm from a Helium Neon laser falls on a double slit with a slit separation of 0.103 mm. An interference pattern is produced on the screen 2.56 m away from the slits. a) how far from the central maximum is the third interference maximum? b) what about the third interference minimum?
1) Two narrow slits are 0.25mm apart. They are illuminated by light from a helium–neon laser with a wavelength of 633nm, and the interference pattern is observed on a screen 49cm from the slits. (a) What is the angle between the zero-order maximum and one of the first-order images? (b) What is the distance between the two first-order images? 2) The m=3 maximum is located 3cm from the m=0 image when monochromatic radiation illuminates a double slit. The screen is...
A helium-neon laser (λ = 632.8 nm) is used to calibrate a diffraction grating. If the first-order maximum occurs at 20.6°, what is the spacing between adjacent grooves in the grating? (In this problem, assume that the light is incident normally on the grating.)
A helium-neon laser (λ = 633 nm) illuminates a single slit and is observed on a screen 1.60 m behind the slit. The distance between the first and second minima in the diffraction pattern is 4.15 mm . What is the width (in mm) of the slit?
A helium-neon laser (λ = 633 nm) illuminates a single slit and is observed on a screen 1.30 m behind the slit. The distance between the first and second minima in the diffraction pattern is 3.95 mm .What is the width (in mm) of the slit?
A helium-neon laser (λ = 633 nm) illuminates a single slit and is observed on a screen 1.60 m behind the slit. The distance between the first and second minima in the diffraction pattern is 3.65 mm. What is the width (in mm) of the slit?
Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.405 mm wide. The diffraction pattern is observed on a screen 3.30 m away. Define the width of a bright fringe as the distance between the minima on either side. (a) What is the width of the central bright fringe? mm (b) What is the width of the first bright fringe on either side of the central one? mm
Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.340 mm wide. The diffraction pattern is observed on a screen 2.95 m away. Define the width of a bright fringe as the distance between the minima on either side. A) What is the width of the central bright fringe? in m B) What is the width of the first bright fringe on either side of the central one? in m
Helium-neon laser light of wavelength 353 nm is sent through a 0.459 mm wide single slit. What is the width of the central maximum on a screen 1.22 m from the slit?