Answered: 2. Light having a wavelength of 600 nm…

2. Light having a wavelength of 600 nm passes on a 0.32-mm-diameter lens. On a screen 80 cm away, a diffraction pattern form. What is the distance from center of the pattern to the first dark fringe?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 8CQ: Shown below is the central part of the interference pattern for a pure wavelength of red light...

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Question

Answer Item 2 only

Activity 3: Solve Me!
Objective: Solve problems on diffraction formed when coherent light passes through a narrow
slit.
What you need:
• Paper and pen
• Scientific Calculator
What to do: Answer the following problems. Write your solutions in a separate sheet of paper.
1. A diffraction grating having 10,000 lines per inch is illuminated by parallel light
of wavelength 589 nm. What are the angles at which the 1st and 2nd order bright
fringes occur?
2. Light having a wavelength of 600 nm passes on a 0.32-mm-diameter lens. On a screen
80 cm away, a diffraction pattern form. What is the distance from center of the pattern
to the first dark fringe?
3. Light of wavelength 540 nm is incident on a slit of width 0.15 mm, and a diffraction
pattern is produced on a screen that is 2.00 m from the slit. What is the width of the
central bright fringe? (1 nm = 109 m)
Reflection
Give practical applications of the concepts that you have learned from the learning
activities. Write your 5-sentence answer in a separate sheet of paper.
RUBRICS
0.
3
Practical application is
scientifically explained
Practical application No discussion.
is explained
Practical application is
gcientifically explained

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