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Amanda [17]
3 years ago
12

Find the pressure exerted by a 3000 N crate that has an area of 2m squared

Physics
1 answer:
ipn [44]3 years ago
8 0
Pressure = Force/ Area = 3000/2 = 1500 pascal.
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A scientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surf
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Answer:

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b) the minimum thickness be now will be 125 nm

Explanation:  

Given the data in the question;

a) The index of refraction of the oil is 1.20. What is the minimum thickness of the oil slick at that spot?

t_{min = λ/2n

given that; wavelength λ = 750 nm and  index of refraction of the oil n = 1.20

we substitute

t_{min = 750 / 2(1.20)

t_{min = 750 / 2.4

t_{min = 312.5 ≈ 313 nm

Therefore, The minimum thickness of the oil slick at the spot is 313 nm

b)

Suppose the oil had an index of refraction of 1.50. What would the minimum thickness be now?

minimum thickness of the oil slick at the spot will be;

t_{min = λ/4n

given that; wavelength λ = 750 nm and  index of refraction of the oil n = 1.50

we substitute

t_{min = 750 / 4(1.50)

t_{min = 750 / 6

t_{min = 125 nm

Therefore, the minimum thickness be now will be 125 nm

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Answer:

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What happens to a path of a light ray parallel to the principal axis, after it passes through a converging
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Answer: The ray that passes through the focal point on the way to the lens will refract and travel parallel to the principal axis. ... All three rays should intersect at exactly the same point.

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