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romanna [79]
3 years ago
8

Is the ratio between the sine of an angle of incidence to the sine of an angle of refraction is called the refractive index?

Physics
2 answers:
motikmotik3 years ago
6 0

Answer:

Yes

Explanation:

Yes it is called the refractive index denoted by n

n=sin<i/sin<r

GalinKa [24]3 years ago
4 0

Answer: Yes

Explanation:

Refractive index is a number that describes the speed of light through a material.

n = sin I/ sin r

It has no dimension and it is equal to the velocity of light c of a given wavelength in an empty space divided by its velocity v in a substance.

n = c/v

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Choose whether each of the following statements is true or false. In order to move a massive crate sitting on the floor, the for
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Answer:

 

Explanation:

1. False

The force you apply on crate is equal and opposite to the force that crate applies on you by Newton's third law of motion.

The force must over come the static frictional force between the crate and the  floor.

2. True

The object can move along another direction than the direction of net force. For example, when a car slows down, the net force is opposite to the direction of motion.

3. True

An object moving at constant velocity has zero net force acting on it.

4. False

An object at rest has forces acting on it but the summation of all the forces is zero i.e. the net force is zero.

6 0
3 years ago
How would you go about separating the components of a mixture of sand, gravel, salt and iron filings
larisa86 [58]

Pour the entire components into water.

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By pouring the mixture into water, it allows the salt to dissolve in the water, while the sand will not.

Next we can run this solution through a filtration device to separate the sand from the water.

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4 0
3 years ago
Can a body have constant speed and still be acclerating ? Give an Example
Allushta [10]






Hi Pupil Here's Your answer :::





➡➡➡➡➡➡➡➡➡➡➡➡➡





An object moving with constant speed can be accelerated if direction of motion changes. For example, an object moving with a constant speed in a circular path has an acceleration because its direction of motion changes continuously.





⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅⬅






Hope this Helps . . . . . . . . .
3 0
3 years ago
energy can be transfered from one type to anogher in any convection some of the energy is lost ti the enviornment as
lianna [129]
<span>Energy can be transformed from one type to another in any convection. Some of the energy is lost to the environment as HEAT.</span>
7 0
3 years ago
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Magnet A doesn't have its poles labeled, but Magnet B has a clearly labeled north and south pole. If the
dusya [7]

Answer:

D:   The side of Magnet A that's attracted to Magnet B's south pole must be Magnet A's north pole

Explanation:

D:  The side of Magnet A that's attracted to Magnet B's south pole must be Magnet A's north pole because

1) opposite poles attract each other

2) similar poles repel each other

3)magnetic lines of force start at the north pole and end at the south pole

4 0
2 years ago
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