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Semmy [17]
3 years ago
14

If the resistivity of copper is less than that of gold at room temperature, which of the following statements must be true? Gold

has a higher resistance than copper.The sample of gold is thinner than the sample of copper. Electrons in gold are more likely to be scattered than electrons in copper at room temperature when they are accelerated by the same electric field. There is more current flowing in the gold than in the copper.
Physics
1 answer:
KiRa [710]3 years ago
5 0

Answer:

Gold Has A Higher Resistance Than Copper. The Sample Of Gold Is Thinner Than The Sample Of Copper. Electrons In Gold Are More Likely To Be Scattered Than Electrons In Copper At Room Temperature When they are exelerated by the same electric field.

Explanation:

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earnstyle [38]

Answer:

Let the second medium be air (n₁=1)

The refractive index n₂ of the medium where first medium is air is found (a)

(a) n₂ = 2

Explanation:

Critical angle can be defined as the angle of incidence that provides the angle of refraction of 90°.

Refractive index of a medium can be defined as a number that describes that how fast a light will travel through that medium.

Critical angle and Refractive index are related by:

\theta_{critical}= sin^{-1}(\frac{n_1}{n_2})

sin \theta_{critical}=\frac{n_1}{n_2}

To find refractive index of medium with respect to air, substitute n₁=1 (Refractive index of air is 1)

Also θ(critical)=30°

Find n₂ :

sin30= \frac{1}{n_2}\\0.5=\frac{1}{n_2}\\n_2=\frac{1}{0.5}\\n_2=2

8 0
2 years ago
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4 0
3 years ago
How do you give an example for finding net force?
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sdas [7]

In spring mass system we know that angular frequency is given as

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here we know that

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7 0
3 years ago
In one town, there are several natural gas drilling sites. Scientists warn town officials that the health of the people could be
Citrus2011 [14]

Answer:

C. community

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7 0
2 years ago
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