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solmaris [256]
3 years ago
11

Which event in a solar cell uses the photoelectric effect?

Physics
2 answers:
monitta3 years ago
5 0

Answer: Light shone on metal expulses electrons from its surface.

musickatia [10]3 years ago
4 0

Answer:

Light shone on metal expulses electrons from its surface. This phenomenon is the photoelectric effect, and the electrons are called photoelectrons. Experiments indicate that by increasing light frequency, the kinetic energy of the photoelectrons increases, and by intensifying the light, the current increases

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The star Betelgeuse is about 600 light-years away. If it explodes tonight,
Thepotemich [5.8K]

Answer:

C

Explanation:

It has to travel 600 light years before we would be able to observe the explosion.

4 0
4 years ago
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Which of the following is not possible? A. Gas flow equals pressure gradient over resistance. B. Resistance equals pressure grad
kaheart [24]

Answer:

C. Pressure gradient equals gas flow over resistance.

Explanation:

As we know that pressure gradient is the driving force for the gas to flow from one point to other point

And we know that the flow rate is directly proportional to the driving force and it inversely depends on the resistance to flow

so we can say

Flow Rate = \frac{Driving \: force}{Resistance}

Flow Rate = \frac{Pressure \: Gradient}{Resistance}

so we can say that correct statements are as below

A. Gas flow equals pressure gradient over resistance.

B. Resistance equals pressure gradient over gas flow.

D. The amount of gas flowing in and out of the alveoli is directly proportional to the difference in pressure or pressure gradient between the external atmosphere and the alveoli.

5 0
3 years ago
Why silicon have large forward current as compared to germanium?​
Iteru [2.4K]

Answer:

The structure of Germanium crystals will be destroyed at higher temperature. However, Silicon crystals are not easily damaged by excess heat. Peak Inverse Voltage ratings of Silicon diodes are greater than Germanium diodes. Si is less expensive due to the greater abundance of element.

4 0
3 years ago
Similarities between the flow of water and an electric circuit.
krek1111 [17]

They both flow in currents. Water has a pump that works like a battery and pipes that work like a circuit.

3 0
3 years ago
How are the direction of the net force on an object and the direction of the object’s acceleration related?
Oksanka [162]

They're the same direction.

8 0
3 years ago
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