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stepladder [879]
3 years ago
5

Light in air enter crown glass (n = 1.52) at an angle of 35 degrees. What is the refracted angle?

Physics
1 answer:
Dovator [93]3 years ago
8 0

Answer:

22.17 degree

Explanation:

n = 1.52

Angle of incidence, i = 35 degree

Let the angle of refraction is r.

use the Snell's law

n = Sin i / Sin r

Sin r = Sin i / n = Sin 35 / 1 .52

Sin r = 0.37735

r = 22.17 degree

Thus, the ray is refracted at an angle of 22.17 degree.

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Answer:

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3 years ago
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What quantities determine the resistance of a piece of material? Choose all that apply.
bija089 [108]

Answer:

Option (a), (b) and (c)

Explanation:

The resistance of a conductor depends on the length of the conductor, area of crossection of the conductor and the nature of the conductor.

The formula for the resistance is given by

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Where, ρ is the resistivity of the conductor, l be the length of the conductor and A be the area of crossection of the conductor.

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Answer:

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4 0
2 years ago
A car travels at an average speed of 60 km / h for 15 minutes. How far does the car travel in 15 minutes?
salantis [7]

Answer:

15km

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Given parameters:

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Unknown:

Distance  = ?

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The distance traveled can de derived using the expression below;

      Distance  = Average speed x time taken

Now let us convert the time to hr;

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2 years ago
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