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
monitta
3 years ago
8

A tank of gasoline (n = 1.40) is open to the air (n = 1.00). A thin film of liquid floats on the gasoline and has a refractive i

ndex that is between 1.00 and 1.40. Light that has a wavelength of 626 nm (in vacuum) shines perpendicularly down through the air onto this film, and in this light the film looks bright due to constructive interference. The thickness of the film is 246 nm and is the minimum nonzero thickness for which constructive interference can occur. What is the refractive index of the film?
Physics
1 answer:
mrs_skeptik [129]3 years ago
6 0

Answer:

Refractive index of film = 1.27

Explanation:

for the constructive interference of reflected light we know that the condition is given as

2\mu t = N\lambda

here we know

\mu = refractive index of the liquid film

t = thickness of layer

t = 246 nm

\lambda = 626 nm

now from the above condition of maximum interference

2(\mu)(246 nm) = 626 nm

\mu = 1.27

You might be interested in
What si unit measures speed ?
dlinn [17]
Hmm doesnt soujd familiar
4 0
3 years ago
What is the mean of 22, 72, 79, 72, and 70
Nataly_w [17]

Answer:

63

Explanation:

You first have to add all the numbers together.

22+72+79+72+70 = 315

You divide the total by the amount of numbers (5)

315/5 = 63

The mean is 63

7 0
2 years ago
You have two rocks made of the same material that are at the same
mr Goodwill [35]

Answer:

the rocks have the same amount of thermal energy

4 0
2 years ago
Read 2 more answers
The sun’s___and the planet’s___keeps planets moving is___orbits.
Sauron [17]

The sun’s gravitational attraction and the planet’s inertia keeps planets moving is circular orbits.

Explanation:

The planets in the Solar System move around the Sun in a circular orbit. This motion can be explained as a combination of two effects:

1) The gravitational attraction of the Sun. The Sun exerts a force of gravitational attraction on every planet. This force is directed towards the Sun, and its magnitude is

F=G\frac{Mm}{r^2}

where

G is the gravitational constant

M is the mass of the Sun

m is the mass of the planet

r is the distance between the Sun and the planet

This force acts as centripetal force, continuously "pulling" the planet towards the centre of its circular orbit.

2) The inertia of the planet. In fact, according to Newton's first law, an object in motion at constant velocity will continue moving at its velocity, unless acted upon an external unbalanced force. Therefore, the planet tends to continue its motion in a straight line (tangential to the circular orbit), however it turns in a circle due to the presence of the gravitational attraction of the Sun.

Learn more about gravity:

brainly.com/question/1724648

brainly.com/question/12785992

#LearnwithBrainly

8 0
3 years ago
What the number ??? Help Please
elena55 [62]

Answer:

first number is 113 and the second number is 15

6 0
2 years ago
Other questions:
  • When the temperature of water increases from room temperature to 90C the process of heating the water is...
    9·2 answers
  • Find the mean and median of the following data set: 98, 87, 92, 79, 65, 91, 80, 92, 85, 86.
    11·1 answer
  • A mass of 2 kg is hung off a spring,which extends 2 cm determine the energy stored in the spring? ​
    14·1 answer
  • an object of mass 1kg was at rest before it fell through a height o 5m and hit the ground. Calculate the initial gravitational p
    7·2 answers
  • If 1 m = 100 cm , then how many cm^2 are there in a m^2 ?? please hel[p
    14·2 answers
  • Air, water and salt solution are given in the table.
    15·1 answer
  • Forces between objects act when the objects are in direct contact or when they are not touching. Can you think of any forces tha
    9·2 answers
  • Consider the reaction.
    11·1 answer
  • A 5.0 kg cannonball is fired horizontally at 68 m/s from a 15-m-high cliff. A strong tailwind exerts a constant 12 N horizontal
    14·1 answer
  • Write the first law of motion​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!