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3 years ago

Match these terms with their definitions.

Physics

2 answers:

Tomtit [17]3 years ago

8 0

1. Entropy

2. Thermodynamics

3. First law of thermodynamics

4. Second law of thermodynamics

5. Maximum entropy

6. The kinetic and potential energy of molecules of a substance

adoni [48]3 years ago

7 0

The correct matches are as follows:

<span>1. measure of disorder
</span>entropy<span>

2. the study of energy conversions
</span>thermodynamics
<span>
3. conservation of energy when heat is added
</span>second law of thermodynamics
<span>
4. disorder increasing
</span>the kinetic and potential energy of the molecules of a substance
<span>
5. reaching a state of total disorder
</span>maximum entropy <span>

6. internal energy
first law of thermodynamics</span>

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For light of wavelength 589 nm, calculate the critical angles for the following substances when surrounded by air.

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In optics, the critical angle is the topmost angle at which a shaft of light traveling in one transparent medium can strike the boundary between that medium and another with a lower refractive indicator without being fully reflected within the first

Critical angles for the different medium.

θ $=sin^{-1}\frac{n_{2} }{n_{1} }$

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$n_{2}$ is the refractive index of air = 1

$n_{1}$ is the refractive index of the given substances.

Refractive index of quartz glass = 1.46

Refractive index of polystyrene = 1.59

Refractive index of sodium chloride = 1.54

Critical angles for quartz glass:

$\theta_{\text {crit }}=\sin ^{-1} \frac{1.00029}{1.46}\\$

$\theta_{\text {crit }}=44^{o}$

Critical angles for polystyrene

$$\theta_{\text {crit }}=\sin ^{-1} \frac{1.00029}{1.59}\\\\$

$\theta_{\text {crit }}=39^{\circ}$

Critical angles for Sodium Chloride

$$\theta_{\text {crit }}=\sin ^{-1} \frac{1.00029}{1.54}\\$

$\theta_{\text {crit }}=41^{o}$

Thus, the critical angles for the quartz glass is 44⁰, the critical angles for the polystyrene is 39 ⁰ and the critical angles for the sodium chloride is 41⁰.

To know more about critical angle visit:
brainly.com/question/3314727

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