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dimulka [17.4K]
3 years ago
14

A student is given an assignment to demonstrate diffraction. He takes a photograph of a straw in a glass of water. The straw app

ears bent at the water level. Which best describes this example?
A) This is a good example of diffraction.
B) This is an example of dispersion and not diffraction.
C) This is an example of refraction and not diffraction.
D) This is an example of reflection and not diffraction.
Physics
2 answers:
arlik [135]3 years ago
8 0

The answer is "c". because the straw the straw moves from air to water and appears refracted at the water level

wel3 years ago
7 0

The answer is C, This is an example of refraction and not diffraction.

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Explanation:

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21. An AC generator has an rms output voltage of 274 V at a frequency of 57.0 Hz.
maks197457 [2]

The answers are as follows;

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b) The maximum voltage is 387.5 V

c) The rms and maximum currents in the inductor are 1.2 A and 0.85 A.

<h3>What is the reactance?</h3>

The reactance is obtained from;

XL = 2πfL

XL = 2 * 3.14 * 57.0 * 0.900

XL = 322 ohm

The maximum voltage is obtained as;

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Learn more about inductive reactance:brainly.com/question/17129912

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