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
love history [14]
4 years ago
11

A beam of light, traveling in air, strikes a plate of transparent material at an angle of incidence of 56.0°. It is observed tha

t the reflected and refracted beams form an angle of 90.0°. What is the index of refraction of this material?
Physics
1 answer:
tankabanditka [31]4 years ago
3 0

Answer:

the index of refraction for the transparent material is 1.48

Explanation:

let n1 = 1.0 be the refractive index of air and n2 be the refractive index of the trasnparent material.

then:

Snell's Law state that:

n1×sin(∅1) = n2×sin(∅2)

where ∅1 = 56.0° is the angle of incidence and  ∅2 = 90 - 56.0 = 34° be the angle refraction.

n1×sin(∅1) = n2×sin(∅2)

          n2 = n1×sin(∅1)/sin(∅2)

               =  (1.0)×sin(56.0°)/sin(34.0°)

               =  1.48

Therefore, the index of refraction for the transparent material is 1.48

You might be interested in
A car is traveling at 7.1m/s accelerates 4.3 m/s^2 to reach a speed of 16.0 m/s how long does it take for this acceleration to o
Bond [772]

<u>Answer</u>

2.06977 seconds


<u>Explanation</u>

Acceleration, a, is the rate of change of velocity

a = (v-u)/t

  where v and u are final and initial velocities respectively.

4.3 = (16.0 - 7.1)/t

4.3 = 8.9/t

t = 8.9/4.3

   = 2.06977 seconds

4 0
3 years ago
_____ have played a major role in altering Earth's atmospheric composition over time.A. TsunamisB. VolcanoesC. HurricanesD. Eart
sammy [17]
I believe the answer is valcanos because they release sulfur in to the air and other chemicals so it willl affect the anispher
4 0
4 years ago
Read 2 more answers
Please help me!! I already did A,B and C but I don’t know D but if you want to help me with all then it would be great so I can
Inessa [10]

Answer:

350cm^3 =350milliters

4 0
3 years ago
Read 2 more answers
In a Rutherford scattering experiment, an alpha particle is accelerated toward a stationary silver nucleus. If the closest appro
lys-0071 [83]

Answer:

Initial Kinetic energy of alpha particle is  9.45x10⁻¹³ J .

Explanation:

The distance at which the initial kinetic energy of the particle is equal to the potential energy is known as closest distance. As it is Rutherford scattering, so it is a coulomb potential energy.

Let K be the initial kinetic energy of alpha particle and r be the closest approach distance. So,

Initial Kinetic Energy = Coulomb Potential Energy

K = \frac{k\times2e\times{Ze}}{r }

Here, k is constant, e is charge of electron and Z is the atomic number of silver.

Put 9x10⁹ N m²/C² for k, 1.6x10⁻¹⁹ C for e, 47 for Z and 22.9x10⁻¹⁵ m for r in the above equation.

K = \frac{9\times10^{9}\times{1.6}\times10^{-19}\times{1.6}\times10^{-19}\times2\times47}{22.9\times10^{-15} }

K = 9.45x10⁻¹³ J

3 0
4 years ago
Newton's Second Law of Motion states
Sonja [21]
The answer is A. for every action there is an equal and opposite reaction
4 0
3 years ago
Read 2 more answers
Other questions:
  • A 5.0 kg, 54-cm-diameter cylinder rotates on an axle passing through one edge. The axle is parallel to the floor. The cylinder i
    15·1 answer
  • Find the electric field at a point in the z axis for a charge distribution of 4 point charges of magnitude Q located at (d,0,0),
    10·1 answer
  • Una piedra es lanzada horizontalmente desde una ventana con una velocidad inicial cuya magnitud es de 10m/s y cae al suelo despu
    15·1 answer
  • Someone Please Help, Need this to pass
    8·1 answer
  • (a) Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is . Find the time i
    14·1 answer
  • What causes change in the seasons?​
    13·1 answer
  • A snail moves 40 cm in<br> 20 seconds. How fast<br> did it move?
    8·1 answer
  • A hydraulic lift is used to lift a heavy box that is pushing down on a 1.5-m2 piston with a force of 1,700 N. What force needs t
    7·1 answer
  • Two wires of diameter 0.25 cm, one made of steel and the other made of brass are loaded as shown in Fig. The unloaded length of
    11·2 answers
  • what gauge pressure in the water pipes is necessary if a fire hose is to spray water to a height of 16 m?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!