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
Sedbober [7]
3 years ago
14

Part A (4 pts) Consider light of wavelength λ = 670nm traveling in air. The light is incident at normal incidence upon a thin fi

lm of oil with n2 =1.75. On the other side of the thin film is glass with n3 =1.5. What is the minimum non-zero value of the film thickness d that will cause the reflections from both sides of the film to interfere constructively?
Physics
1 answer:
s344n2d4d5 [400]3 years ago
6 0

Answer:

Explanation:

On both sides of the film , the mediums have lower refractive index.

for interfering pattern from above , for constructive interference of reflected wave from both sides of the film , the condition is

2μt = ( 2n +1 ) λ / 2

μ is refractive index of film ,t is thickness of film λ is wavelength of light

n is order of fringe

for minimum thickness

n = 0

2μt =  λ / 2

t =  λ / 4μ

= 670 / 1.75 x 4

= 95.71 nm .

You might be interested in
this event is the result of a sudden vertical offset in the ocean floor and is most often the result of plate movement on the oc
MissTica

Answer: Tsunami.

Explanation :

Tsunami is the result of a sudden vertical offset in the ocean floor and is most often the result of plate movement on the ocean floor.

Tsunami is caused due to the displacement of a large volume of water like in an ocean. It consists of a series of waves. It destroys coastlines and coastal settlements. It is also known as a tidal wave.

So, the correct option is (b) Tsunami.

6 0
3 years ago
Distance is 80 seconds is 8 what is the average speed?
True [87]

Answer:

speed =distance /time

speed =80/8

speed =10m/s

8 0
3 years ago
A 50.0 Watt stereo emits sound waves isotropically at a wavelength of 0.700 meters. This stereo is stationary, but a person in a
Rudik [331]
Vehehdhdhdjdbdbdndndsb
4 0
3 years ago
Which single force acts on a object in a free fall
11Alexandr11 [23.1K]

Answer:

weight!!!! Free fall is the motion of a body where its weight is the only force acting on an object.

4 0
3 years ago
Amber asked her roommate to turn down the radio because she was trying to study. Her roommate had increased the volume from a vo
Blizzard [7]

Answer:

Difference threshold or also Just Noticeable Difference

Explanation:

The above mentioned case between room mates, where one room mate was able to detect a minute change in volume shows an instance of the difference threshold.

Difference threshold can be defined as stimulation at its minimum level that can be detected by an individual almost 50 % of the times.

It is the lowest possible level of sound that is detectable by a person.

That is what happened in the mentioned case that when the volume was increased from 14 to 15, Amber was able to detect it.

7 0
3 years ago
Other questions:
  • A ball having a mass of 0.20 kilograms is placed at a height of 3.25 meters. If it is dropped from this height, what will be the
    10·2 answers
  • The direction of rotation of Venus is _________ to the direction of all other planets.
    9·1 answer
  • What is the name of the effect that causes water to travel at an angle to trade winds?
    12·1 answer
  • Which of the following describes what will happen when one lowers the kinetic energy of the particles in a sample of matter?
    5·1 answer
  • A uniform disk has a mass of 3.7 kg and a radius of 0.40 m. The disk is mounted on frictionless bearings and is used as a turnta
    5·1 answer
  • If an electric circuit is not grounded it is best to reach out and touch it to provide the ground A.True or B.False
    15·1 answer
  • The curved movement of air or water is the result of which of these?
    14·2 answers
  • How do you label acceleration, momentum, speed, force, and velocity?
    9·1 answer
  • Which of the following best describes the velocity of an object?
    7·2 answers
  • 1.What is laser?<br> 2.List the uses of laser in everyday life
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!