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tigry1 [53]
3 years ago
14

Refraction occurs when a wave changes its A) color. B) frequency. C) intensity. D) speed.

Physics
2 answers:
mojhsa [17]3 years ago
4 0

Explanation :

Light shows many different types of phenomena like the reflection of light, refraction of light etc.

Refraction of light is the phenomena of bending of light when it passes from one medium to another. This is due to the difference in the refractive indices of two media.

Refractive index is given by :

n=\dfrac{c}{v}

c is the speed of light in vacuum

v is the speed of the light in a medium.

So, refraction occurs when a wave changes its speed.

Hence, the correct option is (D) "speed".

Gwar [14]3 years ago
3 0
The answer would be d.  speed.
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2 years ago
What happens to the current as we increase the amount of stepping of our transformer? Does this help explain why the primary was
matrenka [14]

Answer:

Current will decrease.

Explanation:

When we increase the number of stepping in transformer, the voltage will increase as its is directly proportional to the number of turn of stepping. Thus as the voltage will increase, current will decrease. As per the equation of ideal transformer,   E1 / E2 = I2 / I1

E1 and E2 are the voltages in primary and secondary winding and I1 and I2 are the current.

As the number of turns will be increased more inevitable losses will be generated that dissipates heat thus warming the primary.

Though the conservation of energy is obeyed but losses occur in this scenario hence step-up transformers cannot be used to create free energy.

7 0
3 years ago
You are working in the finance department of Innotech Ltd (INT). The Company has spent $5 million
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5 0
3 years ago
How is p dv a valid integral (it’s an isochoric process) if the variables by definition have to be the same?
denis23 [38]

Answer:

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4 0
2 years ago
Everyone's favorite flying sport disk can be approximated as the combination of a thin outer hoop and a uniform disk, both of di
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Answer:

The length of the boomerang is 0.364 m

Explanation:

The moment of inertia is:

I=\frac{1}{2} m_{d} r^{2} +m_{h} r^{2}

Where

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