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3 years ago

Why the center of Newton rings is dark?

2 answers:

3 0

The point of contact the path difference is zero but one of the interfering ray is reflected so the effective path difference becomes λ/2 thus the condition of minimum intensity is created in the center.

grandymaker [24]3 years ago

3 0

Answer:

the point of contact Thè path different is zero but

<h3>one of inter ferying ray is reflected so the effective path difference become<u> </u><u>/</u> 2 and in this condition minimum intensity is created at center so the center of Newton ring is dark</h3>

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3 years ago

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The Hall effect can be used to determine the density of mobile electrons in a conductor. A thin strip of the material being inve

solmaris [256]

Answer:

the density of mobile electrons in the material is 3.4716 × 10²⁵ m⁻³

Explanation:

Given the data in the question;

we make use of the following expression;

hall Voltage VH = IB / ned

where I = 2.25 A

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d = 0.107 mm = 0.107 × 10⁻³ m

e = 1.602×10⁻¹⁹ C

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so from the form; VH = IB / ned

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so we substitute

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n = 1.54125 / 4.4396226 × 10⁻²⁶

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2 years ago

1. How is a whistling teapot like a volcano?

oksano4ka [1.4K]

Because of the build up of pressure. There is so much steam coming from such a compressed point, it’s coming out in force.

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3 years ago

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If no frictional work is considered, then the energy of the system (the driver at all positions is conserved.

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The initial PE = mgh₁ and the initial KE = (1/2)mv₁²
where g = acceleration due to gravity,
m = mass of the diver.
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Therefore
(KE + PE) ₁ = (KE + PE)₂

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TRUE

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D) All of the above.
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3 years ago

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an eagle has a mass of 8 kg and is flying 85 m above he ground with a speed of 20 m/s. what is the total mechanical energy of th

antoniya [11.8K]

85+5=90 :DD
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Good lessons.

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3 years ago

Why the center of Newton rings is dark?​

Why the center of Newton rings is dark?