3 years ago

What can cause the formation of a magnetic domain?

Physics

2 answers:

hodyreva [135]3 years ago

7 0

Answer:

The magnetic fields of nearby atoms being aligned with each other

Explanation:

took the quiz c:

andrey2020 [161]3 years ago

3 0

Answer:

it is c,d that what I think

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Of the following...?? Is there more to this question? :)

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2 years ago

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A light wave has a wavelength of 450 nanometers. What is the frequency of this light?

Zolol [24]

Answer:

Frequency, $f=6.67\times 10^{14}\ Hz$

Explanation:

Wavelength of a light wave is 450 nm. It is required to find the frequency of this light wave. The speed of light is given by c. So,

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f is the frequency of this light

$f=\dfrac{c}{\lambda}\\\\f=\dfrac{3\times 10^8}{450\times 10^{-9}}\\\\f=6.67\times 10^{14}\ Hz$

So, the frequency of this light is $6.67\times 10^{14}\ Hz$ .

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3 years ago

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2 years ago

Light is incident along the normal to face AB of a glass prism of refractive index 1.54. Find αmax, the largest value the angle

marusya05 [52]

To solve this problem it is necessary to use the concepts related to Snell's law.

Snell's law establishes that reflection is subject to

$n_1sin\theta_1 = n_2sin\theta_2$

Where,

$\theta =$ Angle between the normal surface at the point of contact

n = Indices of refraction for corresponding media

The total internal reflection would then be given by

$n_1 sin\theta_1 = n_2sin\theta_2$

$(1.54) sin\theta_1 = (1.33)sin(90)$

$sin\theta_1 = \frac{1.33}{1.54}$

$\theta = sin^{-1}(\frac{1.33}{1.54})$

$\theta = 59.72\°$

Therefore the $\alpha_{max}$ would be equal to

$\alpha = 90\°-\theta$

$\alpha = 90-59.72$

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Therefore the largest value of the angle α is 30.27°

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3 years ago

A car that increases it's speed from 20 km/h to 100 km/h undergoes

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If a car increases its speed from 20km/h to 100 km/h undergoes positive acceleration. Hope this helped!

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