3 years ago

How is color related to wavelength?

Physics

1 answer:

dlinn [17]3 years ago

8 0

Each color has a different wavelength allowing the eye to see it.

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the density of a steel is 7.8.find the mass of steel cube of side 10 cm. find volume of steel if the mass is 8kg

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Answer:

Mass of the steel cube = 7800 kg

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Explanation:

Given:

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(1)The mass of steel cube :

We know that,

$Density = \frac{Mass}{Volume}$

We are given with density and sides of the cube

then volume of the cube

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Now

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$mass = 7.8 \times 1000$

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(2)volume of steel:

Given the mass = 8 kg

$Density = \frac{Mass}{Volume}$

Substituting the values

$7.8 = \frac{8}{volume}$

$volume = \frac{8}{7.8}$

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