Two slits 0.1 [mm] apart are 1 [m] away from a screen and illuminated by a light of wavelength A = 650 [nm]. For this problem ignore single slit diffraction and only focus on two slit interference. a) What is the distance on the screen from the central bright spot to the first dark spot? b) To the point where the intensity is half of the central intensity?

A light with wavelength λ = 565 nm falls on a pair of closely separated slits. The first dark fringe of the interference pattern is at an angle θ = 3.25 degrees from the central maximum. a) Solve for the numerical value of d in mm.

The central bright fringe in a single-slit diffraction pattern from light of wavelength 518 nm is 2.00 cm wide on a screen that is 1.05 m from the slit. A) How wide is the slit? B) How wide are the first two bright fringes on either side of the central bright fringe?

What region is being pointed to by the arrow in this photo of a double slit diffraction pattern? O m=3 light region O m=3 dark region O m=2 light region O m=2 dark region m=2.5 dark region What is the distance from the central maximum (middle of the m=0 bright region) to the center of the m-4 dark spot for a double slit diffraction pattern with slit separation 2.3 millimeters coming from a light source of wavelength 516 nanometers seen on a screen located a distance 1.6 meters away from the slits? (give your answer in units of millimeters with one decimal place of precision) 0.2

The figure shows two single-slit diffraction patterns. The distance between the slit and the viewing screen is the same in both cases. Which of the following could be true?A. The slits are the same for both; λ1 > λ2B. The slits are the same for both; λ2 > λ1C. The wavelengths are the same for both; a1 > a2D. The wavelengths are the same for both; a2 > a1

A student performs a double-slit experiment using two slits spaced 0.25 mm apart and located 3.0 m from ascreen. Infrared light with a wavelength of 1200 nm is used and film sensitive to infrared light is used as thescreen. What is the average distance between adjacent dark bands on the exposed film?

Part (a) What is the ratio of the slit width to the wavelength of the incident light? Part (b) What is the wavelength of the incident light, in nanometers?

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?

In a Young's double slit experiment the wavelength of light is ?λ, separation between the slits is ?a and the distance to the screen is ?D. Give an expression for the interference fringe width ?w on screen if ?≫?D≫a. For Greek letters such as ?λ use the text equivalent - e.g. "lambda" (without the quotes, e.f. for ??Dλ use D*lambda).