1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
KATRIN_1 [288]
3 years ago
13

A light strikes the boundary of a medium at a 45 degree angle. Instead of entering the second medium, the light reflects back in

to the first medium. What can you conclude about the index of refraction of the second medium?
A it is much smaller than the index of refraction of the first medium

B It must equal to zero

C It is much larger than the index of refraction of the first medium

D It must be equal to 1.00
Chemistry
1 answer:
Dahasolnce [82]3 years ago
6 0

Answer:

D It must be equal to 1.00

Explanation:

The refraction in the second medium must be equal to 1. The refraction index is given as the ration of the angle of incidence to the angle of refraction. This is given as a fraction. In other words:

\frac{sin\theta _{i} }{sin\theta _{r} }  = n

where Θ₁ and Θ₂ are angles of incidence an refraction, and n is the refractive index.

At a critical angle, the refraction is equal to the reflection inside the medium. This results in a phenomenon called total internal reflection where light is reflected internally in the medium.

You might be interested in
Suppose you have made the following hypothesis:
Rudiy27
There are less sharks farther from coral reefs.
5 0
3 years ago
Read 2 more answers
In water, hydrogen bonds are best described as _____.
Elina [12.6K]

Answer: Option D) covalent bonds between water molecules

In water, hydrogen bonds are best described as covalent bonds between water molecules

Explanation:

The hydrogen bonds between water molecules are covalent bonds because they are formed when oxygen attract the lone electron in hydrogen, thus resulting in the formation of a partially negative charge on the oxygen atom and a partially positive charge on two hydrogen atoms

Thus, the sharing of electrons between oxygen and hydrogen atoms is responsible for the covalent bonds between water molecules

7 0
3 years ago
¿Cuál es la carga eléctrica del átomo? Justificar.
Ksivusya [100]

Answer:

Es la cantidad de protones menos la cantidad de electrones.

Explanation:

Es la cantidad de protones menos la cantidad de electrones.

Por cierto, suscríbete a Kevin Tuna Music

8 0
3 years ago
A:1 B:2 C:3 D:4<br> HELPPPPPP
Naya [18.7K]
The answer is 4 hope that help.
6 0
3 years ago
Read 2 more answers
Yeast and other organisms can convert glucose (C6H12O6) to Ethanol (CH3CH2OH) through a process called Alcoholic Fermentation. T
Murljashka [212]

Answer:

The answer to your question is 8.28 g of glucose

Explanation:

Data

Glucose  (C₆H₁₂O₆) = ?

Ethanol (CH₃CH₂OH)

Carbon dioxide (CO₂) = 2.25 l

Pressure = 1 atm

T = 295°K

Reaction

                             C₆H₁₂O₆    ⇒    2C₂H₅OH(l) +2CO₂(g)

- Calculate the number of moles

                             PV = nRT

Solve for n

                             n = \frac{PV}{RT}

Substitution

                             n = \frac{(1)(2.25)}{(0.082)(295)}

Simplification

                            n = 0.092

- Calculate the mass of glucose

                         1 mol of glucose --------------- 2 moles of carbon dioxide

                          x                         --------------- 0.092 moles

                          x = (0.092 x 1) / 2

                          x = 0.046 moles of glucose

Molecular weight of glucose = 180 g

                       180 g of glucose ---------------  1 mol

                         x  g                    ---------------0.046 moles

                         x = (0.046 x 180) / 1

                         x = 8.28 g of glucose                                    

5 0
3 years ago
Other questions:
  • Which of the following is true regarding nominal and real GDP?
    12·1 answer
  • Which of these reasons did you include in your<br> response? Check all of the boxes that apply.
    9·2 answers
  • The pOH of a solution is 10.75. What is the concentration of OH– ions in the solution?. A. –1.031 M. B. 1.778 x 10–11 M. C. 5.62
    8·1 answer
  • A solution is highly concentrated if there is:
    6·1 answer
  • Which of the following is an example of an endothermic process?
    10·1 answer
  • Another name for a "oxidation-reduction" reaction is
    13·1 answer
  • How many milliliters of 0.1 m hcl is required to react with 0.15g sodium carbonate (na2co3?
    15·1 answer
  • Electrons are emitted from a conductor when the conductor is
    5·2 answers
  • POINTS AND BRAINIEST ANSWER!!!!
    8·2 answers
  • Scientists us ________waves to study the characteristics of Earth Layers_______ cannot travel through liquid, so the ________mus
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!