a Young’s double-slit experiment, the slit separation and slit-screen distances are 0.024 cm and 1.8 m, respectively. In the experiment, a seventh-order dark fringe occurred at a distance of 3.5 cm from the central maximum. Calculate the: i) wavelength of light used, ii) distance between adjacent fringes

Sodium vapor light averaging 589 nm in wavelength falls on a single slit of width 4.05 mm. The screen is 2.20 m away from a slit. a) At what angle in degrees does it produce a second minimum? b) What is the width of the central maximum? and What is the highest-order minimum produced?

In a double-slit experiment coherent light of wavelength 652 nm is incident upon two slits that are separated by 0.425 mm. The fringe pattern is viewed on a screen that is 1.69 m away. What is the distance on the screen between the first-order and second-order bright fringes? Give your answer in cm.

In a single-slit diffraction the angular positions of dark fringes are given by an equation sin 0 where m = 0, ±1,±2, . ., a is the slit width and A is the wavelength of the a diffracted wave. True False

A monochromatic source of light of wavelength λ, is incident on a slit of width a. Obtain an expression to represent the angle of the 4th diffraction minimum. Hint: Think about Huygens construction with the single slit divided into four equal length sections acting as sources of secondary waves. Write down a general expression for the nth minimum angle. If λ =500 nm, a = 4 μm, determine the angle of the 2nd minimum.

This question is regarding the experiment ’Diffraction and Interference of Light’. a) In a diffraction experiment for a given slit and a given slit-screen distance,would the distance between the dark fringes increase or decrease when a blue laser is replaced with a red laser? Use equations to argue why, in no more than two sentences (Hint: wavelength λblue = 470nm, λred = 700 b) Draw the pattern you observe for two slit interference. Mark clearly the diffraction and the interference parts of this pattern. c) How will the pattern change? When I change the distance between the slits?

A diffraction pattern is produced on a screen 1.40 m from a single slit, using monochromatic light of wavelength 5.00 x 102 nm. The distance from the center of the central maximum to the first - order maximum is 3.00  mm. Calculate the slit width. Hint: Assume that the first - order maximum is halfway between the first - and second - order minima.