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Author Question: Ray says that interference effects cannot be observed with visible light because random phase ... (Read 78 times)

vHAUNG6011

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on: Aug 10, 2020

Question 1

Monochromatic light (λ = 500 nm) is incident on a soap bubble (n = 1.40). How thick is the bubble (in nm) if destructive interference occurs in the reflected light?

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102

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179

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54

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1

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89


Question 2

Ray says that interference effects cannot be observed with visible light because random phase changes occur in time intervals less than a nanosecond. Stacy says that doesn't matter if collimated light from a single source reaches multiple openings. (They are arguing about a light source 50.0 cm away from two 0.010 0 mm-wide slits, 2.00 mm apart, with a screen 1.00 m away from the slits.) Which one, if either, is correct, and why?

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Ray, because the phases at the two slits will be random and different.

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Ray, because it takes light over 3 ns to travel 1.00 m to the screen.

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Stacy, because the difference in time of travel from the source to the slits is no more than about 7 × 10−12 s.

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Stacy, but only if a lens is placed in front of the slits.

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Both, because interference of light never occurs outside a physics lab.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by vHAUNG6011 on Aug 10, 2020

Kingjoffery

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Reply #1 on: Aug 10, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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vHAUNG6011

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Reply 2 on: Aug 10, 2020
Gracias!

tuate

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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