NewSchool of Architecture and Design Week 8 Physics Test Questions

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ancylba111

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as usual but this time I have test instead of quiz

HW is attached

test is on blackboard

please try to get good grade on test

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Week 8 HW Name________________ 1. Violet light falls on two slits separated by 1.9 𝑥 10−5 𝑚. A first-order bright band appears 13.2 mm from the central bright band on a screen 0.600 m from the slits. What is λ? 2. The surface of a CD contains closely spaced grooves (similar to an old style phonograph). When incident light is reflected off these grooves, the reflected light undergoes diffraction. The relationship between angle () and groove spacing (d) agrees with that of the equation for double slit diffraction and the diffraction grating, d.sin = m. Consider a 700 nm light source (incidence=0o) that is reflected off a CD surface, at a region where the grooves are approximately parallel. The angular location of the 1st interference maxima is 23.5o. Determine the groove spacing for this CD. 3. Why is it important that monochromatic light was used to make the interference pattern in Young’s interference experiment? 4. Research and interpret the role of diffraction in medicine and astronomy. Describe at least two applications in each field. 5. The equation for wavelength from a double-slit experiment uses the simplification that Θ is small so that sin Θ = tan Θ. Up to what angle is this a good approximation when your data has two significant figures?
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Hi, here is your week 8 assignment completion, let me know if you ahve any concerns

Week 8 HW

Name________________

1. Violet light falls on two slits separated by 1.9 𝑥 10−5 𝑚. A first-order bright
band appears 13.2 mm from the central bright band on a screen 0.600 m
from the slits. What is λ?
Given that:
D = 0.600m, y = 1.9 x 10-5m, d = 13.2 * 10-3 m
Formula:
𝑦∗𝑑
𝐷
=

1.9 ∗ 10−5 ∗ 13.2 ∗ 10−3
0.600

= 𝟎. 𝟎𝟎𝟎�...

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