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Photographic film is manufactured by applying a very thin layer of
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14 Nov 2023, 09:20
14 Nov 2023, 09:20
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Photographic film is manufactured by applying a very thin layer of a viscous solution, called a melt, to a transparent, inert support material. If 25 cubic centimeters of melt is applied per square meter of support material is an even layer, what is the thickness of the layer, in centimeters? (1 meter = 100 centimeters)
A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025
A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025
Re: Photographic film is manufactured by applying a very thin layer of
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21 Mar 2024, 00:57
21 Mar 2024, 00:57
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Expert Reply
ExoticNeko wrote:
Where did the second 100 come from? Would you mind explaining a bit more for me?
Posted from my mobile device
Posted from my mobile device
Photographic film is manufactured by applying a very thin layer of a viscous solution, called a melt, to a transparent, inert support material. If 25 cubic centimeters of melt is applied per square meter of support material is an even layer, what is the thickness of the layer, in centimeters? (1 meter = 100 centimeters)
A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025
We're asked to find the thickness of the layer in centimeters, while the area is given in square meters. Thus, we need to convert 1 square meter into square centimeters:
1 square meter = 100 * 100 square centimeters = 10^4 square centimeters.
25 cubic centimeters of melt applied to the area of 10^4 square centimeters will result in a thickness of 25/10^4 = 0.0025 centimeters.
Answer: E.
General Discussion
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Joined: 22 Dec 2016
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Re: Photographic film is manufactured by applying a very thin layer of
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14 Nov 2023, 11:22
14 Nov 2023, 11:22
sahildesai360 wrote:
Photographic film is manufactured by applying a very thin layer of a viscous solution, called a melt, to a transparent, inert support material. If 25 cubic centimeters of melt is applied per square meter of support material is an even layer, what is the thickness of the layer, in centimeters? (1 meter = 100 centimeters)
A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025
A) 25
B) 2.5
C) 0.25
D) 0.025
E) 0.0025
Volume = Area * thickness
\(25 = 100 * 100\) * thickenss
thickness = \(25 * 10^{-4}\)
Option E
