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
hichkok12 [17]
3 years ago
5

A ray of light travels across a liquid-to-glass interface. if the indices of refraction for the liquid and glass are, respective

ly, 1.75 and 1.52, what is the critical angle at this interface?
Physics
1 answer:
prisoha [69]3 years ago
7 0
When it comes to optics, Snell's law is the basic formula to be used. If you notice, when light hits the water, the light does not travel in the same direction. After, it hits the water, it changes in angle. Light becomes refracted. This is observed when your hands tend to become bigger if you place it underwater. The formula for Snell's Law is

n₁ sin θ₁ = n₂sin θ₂, where n is the index of refraction. This depends on the type of medium. For example, for air, n=1. The parameters θ₁ is the angle of incidence, and θ₂ is the angle of refraction. Critical angle is the incident angle needed so that the refract angle is 90°. So, modifying the equation:

n₁ sin θcrit = n₂sin 90°, since sin 90°=1,
sin θcrit = n₂/n₁
θcrit = sin ⁻¹ (n₂/n₁)

Since liquid comes first before glass, n₁=1.75 and n₂=1.52. Substituting,
θcrit = sin ⁻¹ (1.52/1.75)
θcrit = 60.29°

You might be interested in
Could someone please please help meee
Kobotan [32]

Explanation:

noo she has potencial i think kinetic is just if shes moving and shes just about to jump so i think is no

4 0
1 year ago
Our family car travels 40 miles in 2 hours. What is our average speed in mph?
skad [1K]

Your average speed is 20 mph, but ONLY IF YOU'RE IN THE CAR during those 2 hours.

3 0
3 years ago
What is the mass number of an atom with 3 protons, 4 neutrons, and 3 electrons
snow_tiger [21]

Mass number = no. of protons + no. of neutrons

 so, it would be, 3+4 = 7

5 0
3 years ago
What are examples of a solution in solids, liquids, and gases
Nina [5.8K]

Answer:

Solid: metal alloy

Liquid: beer

Gas: Air

Explanation:

A solution is a type of mixture where the solvent and solute are homogeneously mixed. Homogeneous mixture means that the solute shouldn't be able to be seen with the naked eye, filtered and stable enough.  

Metal alloy will be an example of a solution in solid-state. Beer is a solution made of liquid alcohol and liquid water. Air mostly composed of nitrogen, but it has oxygen, carbon dioxide, and many other substances in gaseous form.

3 0
3 years ago
what is the transfer of heat energy by direct contact. A . convection b. radiation c. thermal or heat and d. conduction ​
katrin2010 [14]

Answer:

d. conduction ​

Explanation:

Conduction involves the transfer of electric charge or thermal energy due to the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction while when it relates to thermal energy, it is known as heat conduction.

In the process of heat conduction, thermal energy is usually transferred from fast moving particles to slow moving particles during the collision of these particles. Also, thermal energy is typically transferred between objects that has different degrees of temperature and materials (particles) that are directly in contact with each other but differ in their ability to accept or give up electrons.

Any material or object that allow the conduction (transfer) of electric charge or thermal energy is generally referred to as a conductor. Conductors include metal, steel, aluminum, copper, frying pan, pot, spoon etc.

In conclusion, conduction typically involves the transfer of heat energy by direct contact between two or more conductors such as a pot and electric cooker.

6 0
2 years ago
Read 2 more answers
Other questions:
  • A+b(2d*5d)+7654321-2234567
    13·1 answer
  • A watermelon is blown into three pieces by a large firecracker. Two pieces of equal mass m fly away perpendicular to one another
    14·1 answer
  • the gravitational force between two objects is 1600 and what will be the gravitational force between the objects if the distance
    15·1 answer
  • 2) Why can oversharing be a danger to yourself?
    7·1 answer
  • The ________ is the difference between the volume in the combustion chamber above the piston when the piston is at bottom dead c
    6·1 answer
  • If you push hard enough to make a scale read 9 pounds, that is about 40 Newtons. So Newtons are a smaller unit... True or False
    8·1 answer
  • A woman pulls on a 6.00-kg crate, which in turn is connected to a 4.00-kg
    11·2 answers
  • If you put 3.27 moles of an ideal
    15·2 answers
  • Types of telescope<br>for Space<br>observation​
    12·2 answers
  • How can a single crash of a car into a wall involve three separate collections?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!