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3 years ago

What is the refractive index of a medium?

1 answer:

8 0

The refractive index or index of refraction n of a material is a dimensionless number that describes how light propagates through that medium. It is defined as. ... For example, the refractive index of water is 1.333, meaning that light travels 1.333 times faster in a vacuum than it does in water.

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A celestial body has these properties:

vichka [17]

I think that would be the moon

"too small to clear objects that are in its orbital path" , which means that it probably not a planet.

hope this helps

4 0

3 years ago

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A light ray traveling from a higher index of refraction medium into a lower index of refraction medium (for example, from water

masya89 [10]

Answer:

option C

Explanation:

The correct answer is option C

When the ray of light pass from higher refractive index to lower refractive index then the light bend away from the normal.

when the refracted ray is parallel to the boundary of the medium, θ₂ = 90°

and the incident angle θ₁

so, the angle θc is known as the critical angle.

At critical angle the refracted ray becomes parallel to boundary surface.

4 0

3 years ago

A toy cannon tosses a rubber ball straight upward. A motion sensor measures the speed of the ball as it leaves the cannon. Using

mezya [45]

Answer:

With this information is not possible to calculate the mass.

Explanation:

This is a characteristic problem of energy conservation, where kinetic energy becomes potential energy. For this particular problem, we have the initial speed as input data. The moment the ball comes out of the cannon we have the maximum kinetic energy, as the ball goes up the ball will gain more potential energy as the ball loses kinetic energy, until the moment the ball reaches the maximum height. At the maximum height point, the ball will have its maximum potential energy while its kinetic energy is zero. In other words, all the kinetic energy that was, in the beginning, was transformed into potential energy.

$E_{p}=E_{k}\\m*g*h=0.5*m*v^2$

In the above equation the masses are canceled and we can determine the maximum height, by means of the initial speed.

$h=\frac{0.5*v^2}{g} [m]$

But the mass cannot be determined, since it would be necessary to know the value of the energy, in order to determine the value of the mass.

3 0

3 years ago

a chemical reaction a temperature change may occur because of the breaking or formation of chemical bonds that release excess en

Hoochie [10]

Answer:

it cannot be considered a physical change because it occur from the chemical reaction.

Explanation:

because physical change is the change of the size,volume, density,flexibility. in other words its a change in the outer appearance or change in which we can see or feel without using a tool or a machine

hope it help just my opinion

5 0

4 years ago

What are the two most common disorders in the United States?

padilas [110]

Its either b or d, most likely d

8 0

4 years ago

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