A diffraction grating can be used as a "beam-splitter", breaking up the initial beam into multiple bright spots on a distant screen. If the laser you use has a wavelength of 516 nm and the screen is 4 meters away, and you need the spacing between spots to be 14 cm, what is the spacing of slits (lines) you should use on your diffraction grating? Express your answer in lines/mm. Answer:

Fringes in the Thomas Young experiment are produced using sodium light of wavelength 613 nm and two slits which are 1.1 mm apart. If the fringes are formed on a screen 0.9 m away from the slits, how far is the third order bright fringe from the middle of the screen? Give your answer in millimeters (mm).

You measure three segments of the distance between a diffraction slit an the screen on which the pattern forms: x1 = (15.8 ± 0.2) cm, x2 = (6.7 ± 0.1) cm, and x3 = (11.3 ± 0.1). What is the uncertainty of the total distance x1 + x2 + x3? Group of answer choices 0.4 cm 0.5 cm 0.2 cm 0.3 cm 0.1 cm

Light with wavelength 2 passes through a narrow slit of width w and is seen on a screen which is located at a distance D in front of the slit. The first minimum of the diffraction pattern is at distance d from the middle of the central maximum. Calculate the wavelength of light if D=2.4 m, d =1 mm and w = VAD.Give your answer in nanometers. Answer: Choose...

When a certain crystal is illuminated with an X-ray source of unknown wavelength, a first-order X-ray diffraction maximum is observed at an angle of 27.1∘∘. (All angles are measured relative to the Bragg plane.) When illuminated with a different source with a known wavelength 0.126 nm, a second-order maximum is detected at 32∘∘. Part A) What is the distance, in nanometers, between the Bragg planes?  Part B ) What is the wavelength, in nanometers, of the first, source?

Jill is helping her younger brother Nathan set up an exhibit for a Science Fair. Nathan’s exhibit pertains to the wave-particle nature of light waves. He wishes to demonstrate the wave nature of light by displaying the two point interference pattern of red laser light (λ = 648 nm). Nathan has purchased a double slit slide from a science warehouse which has slits separated a distance of 0.125 mm. Nathan has asked Jill to determine the slide-to-screen distance which will result in a 2.0 cm separation between adjacent bright spots. What distance will result in this antinodal spacing?

Light with a wavelength of 418 nm goes trough a slilt that is 65 micrometers wide and falls on a screen that is 30 m away. What is the full width of the central bright spot of the diffraction pattern? Please give your answer in meters. You may use the small angle approximation.

A helium-neon laser (λλ = 633 nmnm) illuminates a single slit and is observed on a screen 1.60 mm behind the slit. The distance between the first and second minima in the diffraction pattern is 3.75 mm . What is the width (in mm) of the slit? Express your answer in millimeters.