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dezoksy [38]
3 years ago
12

7. what is the density of an object having a mass of 8.0 g and a volume of 25 cm^3? a) 0.32g/cm^3 b) 2.0 g/cm^3 c) 3.1 g/cm^3 d)

200 g/cm^3
Chemistry
1 answer:
natulia [17]3 years ago
6 0
D = m / V

D = 8.0 g  / 25 cm³

D = 0.32 g/cm³

Answer A
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What is the minimum (non-zero) thickness of a benzene (n = 1.501) thin film that will result in constructive interference when v
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At each reflecting surface (benzene and glass) there will be 180 degree phase change.

Now, for constructive interference the optical path in benzene is \lambda.

Formula to calculate thickness of a benzene thin film is as follows.

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Hence, substituting the given values into the above formula as follows.

    Optical path length through benzene = 2 \times n \times d

                   d = \frac{\text{Optical path length through benzene}}{2 \times n}

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