Concept explainers
Figure Q17.7 is the interference pattern seen on a viewing screen behind 2 slits. Suppose the 2 slits were replaced by 20 slits having the same spacing d between adjacent slits.
a. Would the number of fringes on the screen increase, decrease, or stay the same?
b. Would the fringe spacing increase, decrease, or stay the same?
c. Would the width of each fringe increase, decrease, or stay the same?
d. Would the brightness of each fringe increase, decrease, or stay the same?
Want to see the full answer?
Check out a sample textbook solutionChapter 17 Solutions
College Physics: A Strategic Approach (3rd Edition)
Additional Science Textbook Solutions
Conceptual Integrated Science
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Conceptual Physical Science (6th Edition)
- In a Youngs double-slit experiment, two parallel slits with a slit separation of 0.100 mm are illuminated by light of wavelength 589 nm, and the interference pattern is observed on a screen located 4.00 m from the slits. (a) What is the difference in path lengths from each of the slits to the location of the center of a third-order bright fringe on the screen? (b) What is the difference in path lengths from the two slits to the location of the center of the third dark fringe away from the center of the pattern?arrow_forwardWhat If? Suppose light strikes a single slit of width a at an angle from the perpendicular direction as shown in Figure P37.6. Show that Equation 37.1, the condition for destructive interference, must be modified to read sindark=masinm=1,2,3,arrow_forwardIn a Youngs double-slit experiment, a set of parallel slits with a separation of 0.100 mm is illuminated by light having a wave- length of 589 nm, and the interference pattern is observed on a screen 4.00 m from the slits, (a) What is the difference in path lengths from each of the slits to the location of a third-order bright fringe on the screen? (b) What is the difference in path lengths from the two slits to the location of the third dark fringe on the screen, away from the center of the pattern?arrow_forward
- In Figure P27.7 (not to scale), let L = 1.20 m and d = 0.120 mm and assume the slit system is illuminated with monochromatic 500-nm light. Calculate the phase difference between the two wave fronts arriving at P when (a) = 0.500 and (b) y = 5.00 mm. (c) What is the value of for which the phase difference is 0.333 rad? (d) What is the value of for which the path difference is /4?arrow_forwardFigure 27.55 shows the central part of the interference pattern for a pure wavelength of red light projected onto a double slit. The pattern is actually a combination of single slit and double slit interference. Note that the bright spots are evenly spaced. Is this a double slit or single slit characteristic? Note that some of the bright spots are dim on either side of the center. Is this a single slit or double slit characteristic? Which is smaller, the slit Width or the separation between slits? Explain your responses. Figure 27.55 This double slit interference pattern also shows signs of single slit interference. (credit: PASCO)arrow_forward12. Light with a wavelength of 646 nm passes through two slits and forms an interference pattern on a screen 8.75 m away. The distance between the central bright fringe and the second- order bright fringe is 5.16 cm. (a) What is the angle of the second order bright fringe? (b)What is the separation between the slits? (c)What will be the distance between the central bright fringe and the third-order minimum? (d)What is the angle of the third order minimum fringe?arrow_forward
- A physics professor wants to perform a lecture demonstration of Young's double-slit experiment for her class using the 633-nm light from a He-Ne laser. Because the lecture hall is very large, the interference pattern will be projected on a wall that is 6 m from the slits. For easy viewing by all students in the class, the professor wants the distance between the m=0 and m=1 maxima to be 50 cm. What slit separation is required in order to produce the desired interference pattern?arrow_forwardMonochromatic light from a laser shines on a double slit in a barrier and produces an interference pattern on a screen, with dimensions shown in the drawing of the barrier and the screen, and in the figure showing the interference pattern. a) What is the wavelength of the light? b) What would be the distance from the center to the corresponding minimum in the interference pattern if we used a blue laser with 410 nm wavelength instead?arrow_forwardA viewing screen is separated from a double slit by 4.80 m. The distance between the two slits is 0.030 0 mm. Monochromatic light is directed toward the double slit and forms an interference pattern on the screen. The first dark fringe is 4.50 cm from the center line on the screen.(A) Determine the wavelength of the light.arrow_forward
- A light with a wavelength of 440 nm passes through a double slit system and producesa diffraction figure whose graph of intensity I as a function of angular position θ is shown in the figure below.figure below. Determinea. the width of the slits andb. the distance between the slits.c. Show that the maximum intensities indicated for the interference bangs with m = 1 andm = 2 are correct.arrow_forwardYou can observe thin-film interference by dipping a bubble wand into some bubble solution and holding the wand in the air. What is the thickness of the thinnest soap film at which you would see a black stripe if the light illuminating the film has a wavelength of 540 nm? Hint: use n = 1.33.arrow_forwardSome light is passing through a double-slit and is creating an interference pattern on a screen that is 2.00 m away. The slits are separated by 2.50 x 103 m. The light is not visible, i.e. not within the visible spectrum, but you detect the third dark fringe at a distance 2.50 x 10-2 m above the central bright fringe using a sensor. What is the wavelength of the light?arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegePhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning