What is index of refraction and what does it have to do with the speed of light?

Answers

Answer 1

Answer:

Index of refraction is the ratio of the velocity of light in medium to the velocity of light in vacuum.

OR:

Index of refraction is the ratio of the sine of the angle of incidence to sine of the angle of refraction of light propagating from one medium to another.

When the refractive index is greater, the speed of light is greater as it moves from the medium to vacuum.


Related Questions

23 In any environment or ecosystem, organisms can have several different types of relationships. Three types of relationships are described below. Ecological Relationships Relationship Description Barnacles (small crustaceans) adhere to the skin of a whale in order to be deposited in a new location that is abundant in resources. The whale does not appear to be affected. Fleas attach to the skin of warm-blooded animals, feed on their blood, and make the animals itch. Fungal mycorrhizae live on plant roots and increase the plant's ability to absorb nutrients. The mycorrhizae are provided with carbohydrates from the plant Y Y Z Which of these correctly describes the relationships between the organisms? A X: mutualism Y: parasitism Z: commensalism C X: parasitism Y: commerisallsm Z: mutualism B X, commensalism Y: mutualism Z: parasitism D X: commensalism Y; parasitism Z: mutualism​

Answers

Answer:

The correct answer is X: commensalism Y: parasitism Z: mutualism

Explanation:

Took a test with the same question

The ecosystem organisms have several different types of relationships. The ecological relationships affect the organism interaction as X: commensalism Y: parasitism Z: mutualism. Thus option D is correct.

What is an ecological relationship?

An ecological relationship is an overlapping relationship that an organism has with the environment and is characterized by five types as

competition, predation, commensalism, mutualism, and parasitism.

The ecological system all organisms are dependent on each other for food and growth. Thus the fleas attached to the skin of the warm-blooded animals are a sign of parasitism and fungus increases the plant's growth is a sign of mutualism.

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The oxygen and carbon dioxide exchange that occurs during photosynthesis and respiration help to

Answers

release carbohydrates

The oxygen and carbon dioxide exchange that occurs during photosynthesis and respiration aid in the release of carbon dioxide and the utilization of oxygen produced by the photosynthetic process.

What is the significance of respiration and photosynthesis?

The photosynthetic process is the one that can make oxygen as a product, and later that oxygen is used by plants and other animals in the process of respiration, which is essential for life as the cell makes energy in this process. Plants and other chloroplast-containing photosynthetic organisms, such as blue-green algae, phytoplanktons, etc., can produce oxygen, which is then used in respiration to power the cell's activities.

Hence, the oxygen and carbon dioxide exchange that occurs during photosynthesis and respiration aid in the release of carbon dioxide and the utilization of oxygen produced by the photosynthetic process.

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How did Francesco Redi disprove the idea of spontaneous generation?
He showed that flies were not produced by meat.
He showed that microorganisms are present in air.
He showed that microorganisms cause disease.
He showed that flies spread disease.

Answers

Francesco Redi showed that microorganisms are present in air thereby disproving the idea of spontaneous generation and is denoted as option B.

What is Spontaneous generation?

This is supposed production of living organisms from non living substances.

The jar was left open and had maggots in it means the flies laid their eggs which later turned to the maggot which was what Redi observed during the experiment.

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Yuki has a bowl of ice. She places the ice in a warm room and watches as it melts into liquid water. Yuki then places the liquid water over a Bunsen burner and heats it until it vaporizes. Explain what happens to the water molecules in Yuki's experiment; from the beginning to the end of the experiment.

Answers

Answer:

ice is a solid.When heat is added it turns into a liquid,its a reversible change.As regarding to the water moleculesWhen water is heated, it expands, or increases in volume. When water increases in volume, it becomes less dense. As water cools, it contracts and decreases in volume. When water decreases in volume, it becomes more dense. For samples of water that have the same mass, warmer water is less dense and colder water is more dense.Im not sure if this helps but try it out :)

Which of the following answer choices would be a sex chromosome aneuploidy in a human?
Choose 1 answer:

(Choice A)
A
A male gamete has only one Y-chromosome.

(Choice B)
B
A female gamete contains one X chromosome.

(Choice C)
C
A sperm has one X chromosome.

(Choice D)
D
An egg contains two X chromosomes.

Answers

Answer:

c I think it is but it's up you, it could also be D

Answer:

It's D

Explanation:

WILL GIVE BRAINLIEST!
Consider the attached genetic code chart and the following DNA sequence.

DNA sequence 3' TAC GGG AGT CTT TCC ACT 5'

What would be the mRNA sequence?

What would be the amino acid sequence?

What would occur to the amino acid sequence if the following mutation (G --> C in bold below) were to take place?

DNA sequence 3' TAC GGG ACT CTT TCC ACT 5'

What type of mutation is this?

Answers

Explanation:

TAC GGG AGT CTT TCC ACT -DNA

AUG CCC UCA GAA AGG UGA -mRNA

Met Pro Ser Glu Arg Stop -Amino acid sequence

Can't see the bold :/

Insertion mutation I believe.

A codon chart can be used to read the genetic code. To utilize this chart, start by finding the first codon nucleotide, then the second, and finally the third. The chart will then show which codon codes for the amino acid. Because the genetic code is degenerate, there are several codons for each amino acid.

What role of genetic code in DNA sequence?

The genetic code serves as the body's language for converting the DNA instructions from our genes into the constituent parts of life. It is typically discussed using the “codons” found in mRNA since mRNA is the messenger that transmits information from the DNA to the site of protein production.

Therefore, TAC GGG AGT CTT TCC ACT -DNA

AUG CCC UCA GAA AGG UGA -mRNA

Met Pro Ser Glu Arg Stop -Amino acid sequence

Insertion mutation.

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8. For the food chain shown below, which of the following changes would 2 points
have the most severe consequences? Grasses - Crickets → Field Mice →
Hawks
A minor decrease in rainfall
The field mice population slightly increasing
The introduction of a second predator that eats field mice
0 A parasitic infestation that reduces the cricket population

Answers

Answer:

I think it is A Parasitic one

Explanation:

A decrease in rainfall may lead to drought, thereby altering the basis (first level) of the food web.

A food web is a diagram that represents the relationships between different groups of organisms in an ecosystem.

Producers (e.g., plants) are organisms that maintain the entry of matter and energy to the food web.

Rainfall is fundamental for maintaining the life of land producers (in this case, grasses) in the food web.

In conclusion, a decrease in rainfall may lead to drought, thereby altering the basis (first level) of the food web.

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Help please!! I'll name you brainliest!!

Answers

b the uv one :)))))))))

Pleaseeee helpppppppppp!!!!!!!!!!!!!!

Answers

Answer:

I know that some herbivores lived in the mesozoic

Which statement best describes evolution in a population? A. It is a change in how common a certain genetic trait of a species is from one generation to the next. B. It is a gene for a trait that helps an individual reproduce more times during its life C. It is a trait that helps an organism survive longer and produce more offspring D. It is a process by which an individual with a helpful trait produces many offspring with the same trait.​

Answers

Answer:

A

Explanation: Because that means that humans reproduct another human as it keeps going on and some people call the people from our past is ancester but it moveing on to a new genaration of kids and then when they grow up the they make more kids that why it is A

Answer:a

Explanation:

from the moment a message is sent to astronauts on the moon it take at least 3 seconds to reply because
Plz help

Answers

Answer:

its D) it takes time for electromagnetic radio waves to get to the moon because of its large distance from earth.

Explanation:

A food web is more realistic because a snake
A. has multiple adaptations

B. eats more than just frogs

C. just feeds on birds

Answers

Answer:

B. eats more than just frogs

Explanation:

A food web is more realistic because a snake eats more than just frogs

A food web is more realistic because a snake eats more than just frogs. The correct option is B.

What is a food web?

A food web is a network of interrelated food chains that represents the movement of materials and energy within an ecosystem. In a food chain, the various arrows symbolize the various species that are being consumed by one another and so represent the flow of energy. Additionally, it shows that an animal can eat a variety of foods.

Food chains that are linked together form food webs. In a food chain, arrows point from the organism being eaten to the organism eating it.

The energy flow in a food web is depicted by arrows. Food webs display every form of eating in an environment.

Thus, the correct option is B. eats more than just frogs.

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***8 Points*** Two copies of a ______ allele are needed to produce a trait.

Answers

The Answer is Gene
Hope this helped!!

How do the trachea, bronchi, bronchioles, and alveoli work together to process the oxygen that you inhale?

Answers

Answer:

The bronchial tubes divide into smaller air passages called bronchi, and then into bronchioles. The bronchioles end in tiny air sacs called alveoli, where oxygen is transferred from the inhaled air to the blood. After absorbing oxygen, the blood leaves the lungs and is carried to the heart.

Explanation:

Binomial nomenclature refers to the method of naming species
with two names, consisting of the____
name and___
name.

Answers

Answer:

Genus and species

Explanation:

Binomial nomenclature refers to the method of naming species with two names, consisting of the genus name and species name.

What is Binomial nomenclature?

A binomial system of naming a species is known as binomial nomenclature. A binomial name has two components. They are the particular name and the generic name (genus name) (or specific epithet, in botanical nomenclature).

It frequently takes a Latinized form. Similar terms include binary nomenclature, binominal nomenclature, and two-term naming systems.

Binomial nomenclature, which assigns a single, distinctive name identifier for a particular species across several languages, is crucial for integrating the naming system across life sciences.

Therefore, Binomial nomenclature refers to the method of naming species with two names, consisting of the genus name and species name.

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In a food web, all arrows should point to
A. decomposers

B. consumers

C. producers

Answers

B. consumers because eventually all the energy is consumed by them

Answer:

A. decomposers

Explanation:

In a food web, all arrows should point to decomposers

Please only respond if you know the answer and links will be reported

Answers

Answer:

Your answer is D. Proteins

Explanation:

Carbon is found in A,B, and C.

Earth's average temperature typically fluctuates (cycles)
O True
O False

Answers

This answer is true because earth is continually spinning on its axis cause different seasons

(I WILL MARK BRAINLIEST AND GIVE THANKS) QUESTION 1
DOK 2
What is another example of mechanical weathering?
SELECT AN ANSWER
a cliff getting worn away from the ocean
waves crashing against it
sulfur dioxide and nitrogen gases creating
acid rain
Lichen make a weak acid that dissolves
rock
carbon dioxide from the air dissolving in
rainwater, which hits the rock to make new
minerals, like clay

Answers

Answer:

the first answer I hope I helped you

the first answer is correct

Since they are prokaryote cells, they do not have
or ______
a _____

Answers

Answer:

They don't have nucleus or they have distinct nucleus

Answer:

1.) membrane-bound organelles

2.) a nucleus

Explanation:

PLEASE HELP ME!!!!! I WILL MARK BRAINLIEST!!!!!

Answers

Answer:

the zooplankton would increase

Explanation:

there are not vary many salmon to eat the zooplankton

Predict what would happen if a person had too few target cell receptors on the thyroid gland? (100 points)

Answers

Answer:

They wouldn’t be able to see properly

Explanation:

Through which of these will light waves travel with the greatest speed? PLZEXPLAIN Y THE ANSWER IS CORRECT

a. Air
b. Glass
c. Vacuum
d. Water

Answers

Answer: The correct answer is C. Vacuum.

Explanation: It was correct on my test : )

4

Select the correct answer.

Jonathan is starting to grow facial hair, his voice is deepening, and he's showing other signs of puberty. Which stage of development is he likely

in?

OA.

middle childhood

OB. late childhood

Ос.

adolescence

OD. young adult

Answers

Answer:

Adolescence

Explanation:

(of a young person) in the process of developing from a child into an adult.

Answer:

adolecents are teenagers and teenagers get puberty

Explanation:

When gases trap heat in the atmosphere causing the temperature to rise this is called the greenhouse effect.
A. True

B. False

Answers

Answer:

A. True

Explanation:

Gases trap the heat in the atmosphere causing the temperature to rise, this is called the greenhouse effect.

Without the natural filtration system of a wetland, money would most likely be spent on

building barrier islands.

coastal rebuilding efforts.

waste water treatment plants.

non-point source pollution clean up.

Answers

Answer:c.) waste water treatment plants

Explanation:

(Evolution #2 - 10)All of the following adaptations would help a plant survive in the desert EXCEPT.
Question options:

a)Having deep roots to reach ground water

b) Having a larger central vacuole to help store water

c) Having no leaves to help retain water

d) Having a thicker cell wall to help retain water

Answers

B) having a larger central vacuole to help store water it’s the only one da sounds off

Plants take energy
from the sun
and make food, which for plants is

Answers

Answer:

Photosynthesis

Explanation:

Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.

Answer:

[tex]\boxed {\boxed {\sf Glucose}}[/tex]

Explanation:

Plants (plus some bacteria and algae) are autotrophs and undergo a process called photosynthesis.

They obtain light energy from the sun and capture it using a green pigment called chlorophyll, water from the soil is drawn up through the roots with capillary action, and carbon dioxide diffuses into stoma on leaves.

Then, in the chloroplast, these substances are turned into oxygen and glucose. Both of these are used in cellular respiration, which creates energy for the plant to grow and carry out cellular and biological functions. Therefore, glucose is often called "food" for the plant.

Read the following summary, which describes blood flow and heart output in space. Then, answer the question.

The heart doesn't have to do as much work to pump blood when in orbit. After only one day beyond Earth's gravity, astronauts have a lower blood volume. They can lose as much as 20 percent of their blood volume while on a space mission. Since the body has less blood to push around and the heart is pushing more blood with each beat, an astronaut's heart rate also slows down to compensate.

What process is being described?

Breathing
Excretion
Homeostasis
Respiration

Answers

Explanation:

respiration because it's about blood circulation

Answer:

its respiration

Explanation:

im doing the same test

Which of these statements explains why the plants in Groups E and F died? The high sugar content caused too much water to move into the root cells. The high sugar content caused too much water to move into the root cells. The high sugar content clogged the pores in the cell membranes. The high sugar content clogged the pores in the cell membranes. The high sugar content prevented the plant from capturing energy. The high sugar content prevented the plant from capturing energy. The high sugar content caused too much water to move out of the root cells.

Answers

Answer:

The high sugar content caused too much water to move out of the root cells.

Explanation:

Too much causes transpiration to occur, in this case too much water killed the plant.

The statement which explains why the plant in Group E and F died is that the high sugar content caused too much water to move out of the root cells.

What do you mean by High sugar content?

High sugar content in plants may be defined as the amount of carbohydrates (glucose) and their components get accumulated in the different parts of the plants in a high ratio. It also affects the rate of photosynthesis.

High sugar content leads to the loss of water (transpiration) in plants. In this condition, water loss is maximum which results in the scarcity of water in the root cells. And hence the plant died.

Therefore, the statement which explains why the plant in Group E and F died is that the high sugar content caused too much water to move out of the root cells.

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