Please assist by answering the following questions using the rubric provided on
ID: 3162580 • Letter: P
Question
Please assist by answering the following questions using the rubric provided on page 4, all help is greatly appreciated. Thank You in advance
To Specify,
Please assist in answering:
II. Evaluate a company's claim, Questions A-D
IV. Why did we do this lab? Questions 1-3
GETTING STARTED: hal is Huygen's principlc? How does it relate to the double slit experimeri? 2. Whal is constructivc intcrforencc What is destructive erlerence? Iluw does relate to thc double slit xpcrimenti 3. What is the relationship belwecn a wave's 5pccd, frequency and wavelel 4. What is a laser? Why is different from thc other types of light sources? 1, TESTING EXPERIMENT: DOUBLE SLIT INTERFERENCE You learned in class that the wave model of Light predicts a pattern of alternating bright and dark regions whcn laser light s shone through 2 parallel slits onto a viewing sureeri. This pattem is represented as a mathematical relation between the separation of the two slits, e wavelength the light, snd the positions ot the bright and dark bands un the screen Constructive interference occurs al angles 0 where: dsin B-mh (m 0, 1, 2, experiments to test this relation. Make sure to test two different aspects of this relation Design two vailable equipment: Lasers (one red and one green), seleu n of double-slits, meter stick, viewing screen, optics bench a) First, use the wave model of light to explain why a pattern of many alternating light and dark regions appears in the first place. Why don't you just see two bright regions. one for each slit? b) State what aspects of the relation you are going do test and what variables you need to control while you are testing each aspect. c) Brainstorm the task and make a list of possible experiments whose outcome the mathematical relation can predict Decide which two experiments are best. Briefly explain why. Feel free to set up the equipment to see if the measurements you intend on making are feasible. If they aren't, is there a way to modify your setup so that they are d) Describe each of your chosen experimental designs, Include labeled sketches. Include how you will take steps to minimize experimental uncertainty. e) Think what data you should initially record in order to make quantitative predictions for the outcomes of your chosen experiments. This does not mean perform the experiment yet. Just take whatever measurements you need to ma your predictions. Record these data in an appropriate format f) Make a prediction about the outcome of each experiment. In a discussion about any additional assumptions you clude have to make and how they might affect the results of the experiment. g) Perform the experiments. Record the outcomes. Compare your results to the predictions h) Decide if the xperimental outcomes are consistent or inconsistent with the predictions, taking into account the effects of assumptions and uncert ainties. II, EVALUATE A COMPANY S CLAIM ou are a technician in the artificial flavor industry. Your current assignment is to build a spectroscope used to analyze he properties of a chemical that will be used in a new flavoring. You plan to use an interference grating (also known as a diffraction grating') as a major part of the apparatus. An interference grating is scries of very narrow and closely spaced transparent regions separated by opaque regions somewhat like a picket fence). When a beam of laser light is incident on thc interference grating it creates a pattern ofa tcrnati g bright and dark regions similar lo a double-slit. The brightExplanation / Answer
Answering first 4 questions
1) Huygen principle=It states that every point on a wavefront is a source of wavelets, which spread forward at the same speed
(2) Constructive interference=When the crests or troughs of two interfering waves meet, their amplitudes add together. This principle is known as constructive interference
Destructive ==When the crests of one meets troughs of another of wave, their amplitudes get subtracted from one other . This principle is known as destructive interference
for double slit experiment
y=(m*wavelength*D/d) is the position of mth orderconstructive interference
y=(2m+1) *wavelength*D/d is position of mth order destructive intereference
(3) We know velocity=frequency*wavelength
(4)Laser=is defined as a device that produces a beam of coherent monochromatic light (or other electromagnetic radiation) by stimulated emission of photons from excited atoms or molecules.It is different as light is monochromatic and coherent .