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Sedaia [141]
3 years ago
15

a light ray traveling in air enters a second medium and its speed slows to 1.71 × 10^8 meters per second. what is the absolute i

ndex of refraction of the second medium? (1) 1.00 (3) 1.75 (2) 0.570 (4) 1.94
Physics
2 answers:
givi [52]3 years ago
8 0
The absolute refractive index is equal to the speed of light of the wave in air divided by the speed of light in the second medium. This means that it is equal to 3 x10^8 / 1.71 x10^8. This means the answer is 1.75
Dmitriy789 [7]3 years ago
8 0
Absolute Index of Refraction 

                                               =  Velocity of Light in air / Velocity of light in medium

                                               =   3 * 10⁸  m/s   / 1.71 * 10⁸ m/s

                                               = 1.75

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The distance traveled by the particle at the given time interval is 0.28 m.

<h3>Position of the particle at time, t = 0</h3>

The position of the particle at the given time is calculated as follows;

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y = 2 cos2(t)

x(0) = 2 sin2(0) = 0

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<h3>Position of the particle at time, t = 4</h3>

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x(4) = 2 sin2(4) = 0.28

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<h3>Distance traveled by the particle at the given time interval</h3>

d = √[(x₄ - x₀)² + (y₄ - y₀)²]

d =  √[(0.28 - 0)² + (1.98 - 2)²]

d = 0.28 m

Thus, the distance traveled by the particle at the given time interval is 0.28 m.

Learn more about distance here: brainly.com/question/23848540

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3 years ago
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The correct answer to the question is : D) Be moving at a constant velocity.

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Hence, it is the unbalanced force which changes the state of rest or motion of a body. Balanced force is responsible for keeping the body to be either in static equilibrium or in dynamic equilibrium.

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