4 years ago

What can increase pressure of a gas?

1 answer:

8 0

Summary. An increase in the number of gas molecules in the same volume container increases pressure. A decrease in container volume increases gas pressure. An increase in temperature of a gas in a rigid container increases the pressure

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What law states that energy is never created or destroyed?

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A laser emits a green light with wavelength of 515 nm. Calculate the frequency of this light.

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Answer:

$Frequency=5.83\times 10^{14}\ Hz$

Explanation:

The relation between frequency and wavelength is shown below as:

$c=frequency\times Wavelength$

c is the speed of light having value $3\times 10^8\ m/s$

Given, Wavelength = 515 nm

Also, 1 m = $10^{-9}$ nm

So,

Wavelength = $515\times 10^{-9}$ m

Thus, Frequency is:

$Frequency=\frac{c}{Wavelength}$

$Frequency=\frac{3\times 10^8}{515\times 10^{-9}}\ Hz$

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