All categories

3 years ago

What is the property of a medium that determines the speed of light in the material?

1 answer:

8 0

The speed of light is determined by the medium (material) through which the light is travelling. Light travels faster in a vacuum than it does in any other medium. Light changes speed as it passes from one medium to another. This is called refraction.

You might be interested in

A person, with a mass of 50.0 kg, stands on a weighing scale in a lift which is moving

svet-max [94.6K]

Answer:

Explanation:

Because I just had that answer

6 0

3 years ago

A submarine is 2.84 102 m horizontally from shore and 1.00 102 m beneath the surface of the water. A laser beam is sent from the

xxMikexx [17]

Answer:

468 m

Explanation:

So the building and the point where the laser hit the water surface make a right triangle. Let's call this triangle ABC where A is at the base of the building, B is at the top of the building, and C is where the laser hits the water surface. Similarly, the submarine, the projected submarine on the surface and the point where the laser hit the surface makes a another right triangle CDE. Let D be the submarine and E is the other point.

The length CE is length AE - length AC = 284 - 234 = 50 m

We can calculate the angle ECD:

$tan(\hat{ECD}) = \frac{ED}{EC} = \frac{100}{50} = 2$

$\hat{ECD} = tan^{-1} 2 = 63.43^o$

This is also the angle ACB, so we can find the length AB:

$tan(\hat{ACB}) = \frac{AB}{AC} = \frac{AB}{234}$

$2 = \frac{AB}{234}$

$AB = 2*234 = 468 m$

So the height of the building is 468m

5 0

3 years ago

Please Awnser soon water's state of matters include stream, liquid water, and ice. what about water is the same in these states?

yulyashka [42]

Well the similarity is that even though they are in a different state of matter they still come from the same substance: h2o

7 0

3 years ago

What is <br>M=35g, V=17cm³

cestrela7 [59]

Answer: 25

Explanation:

6 0

3 years ago

A decrease in the magnitude of the velocity is called

allochka39001 [22]

That's one of the three changes that are called "acceleration".

The other two are:

-- increase in the magnitude

-- change in direction.

Some might call a decrease in the magnitude "deceleration".

3 0

3 years ago