3 years ago

The items in the following list are all units of matter. Which is the smallest unit that retains the properties of the matter?

Physics

1 answer:

-Dominant- [34]3 years ago

3 0

The answer is A. Atom

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$\lambda = 672 nm$

so this is nearly red colour light

Explanation:

As we know that the interference of light from reflected light then the path difference is given as

$\Delta x = 2\mu t + \frac{\lambda}{2}$

now we know that for constructive interference of light the path difference is given as

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so we will have

$2\mu t + \frac{\lambda}{2} = N\lambda$

so we will have

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$\lambda = 2(1.40)(120nm)$

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so this is nearly red colour light

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