Why do the optical signals used in optical fibre cables have a
very short wavelength?​

Answers

Answer 1

Answer:

Optical signals have very high frequencies. A high frequency means a short wave length because the wave length is inversely proportional to the frequency (λ = v/f), where v is the propagation speed in the media.

Explanation:

Answer 2

Since optical signals have a greater frequency, measured in nanometers, their wavelengths are shorter (10-9 meter). A billionth of a meter is equal to one nanometer (nm), a unit of length.

What are optical signals?

An electromagnetic signal is an optical signal. It has oppositely polarised magnetic and electric fields.

The frequency of this EM pulse is typically very high (in the order of THz). As a result, measuring it in terms of wavelength is more practical.

The frequency of optical communications are very high. Since the wave length and frequency are inversely related, a high frequency implies a short wavelength.

To a receiving end, where the light signal is processed as data, the fiber transfers "data" by light.

As a result, fiber optics serves as a "pipe" or transmission medium for signals that need to travel vast distances quickly.

Thus, the optical signals used in optical fiber cables have a very short wavelength.

For more details regarding optical signal, visit:

https://brainly.com/question/17646651

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Related Questions

A line graph is a great tool for showing changes over time. Why is a line graph better than other graphs at showing this type of data?

Answers

Answer:

Line graphs allow us to see overall trends such as an increase or decrease in data over time. Bar graphs are used to compare facts.

What are some ways you can work with templates? Check all that apply.
A. creating a new template from scratch
B. scanning a template from a printed page
C. using many different templates in one document
D. using a preexisting template
E. modifying a preexisting template

Answers

What are some ways you can work with templates? Check all that apply.

Answer: (A,D,E) see picture below for help also.

Answer:

Look at the other answer that guy knows what he is talking about

Explanation:

Match the data type to the given data.
1. float
2. array
3. Boolean
4. character

false
с
c, o, m, p, u, t, er
26.2

Answers

Float: 26.2
Array: c, o, m, p, u, t, er
Boolean: false
Character: c

Choose all items that represent essential tasks to do after an interview is over.
Send copies of the resume and cover letter.

Construct a career portfolio.

Ask about next steps and the best way to communicate.

Phone each person interviewed.

Send a follow-up email within 24 hours.

Submit the job application.

Answers

Answer:

Ask about next steps and the best way to communicate.

Send a follow-up email within 24 hours.

Explanation:

An interview is a well-organized conversation where one participant asks questions, and the other person gives answers to those questions.

Essential tasks that need to be done after an interview is over are as follows:

1. Ask about next steps and the best way to communicate.

2. Send a follow-up email within 24 hours.

Answer:

Ask about next steps and the best way to communicate.

Send a follow-up email within 24 hours.

Write a C console application that will be used to determine if rectangular packages can fit inside one of a set of spheres. Your program will prompt the user for the three dimensions that define a rectangular box; the length, the width, and the height. The interior diameter of a sphere is used to identify its size. Spheres are available in the following five sizes: 4- inch, 6-inch, 8-inch, 10-inch, and 12-inch. Your program will execute repeatedly until the user enters a value of zero for one or more of the rectangular box dimensions. After obtaining the dimensions of the rectangular box, your program will call a function named getSphereSize that determines if the box will fit inside one of the five spheres. The formula for calculating the diagonal of a rectangular box is:

Answers

Answer:

#include <cmath>

#include <iostream>

using namespace std;

int getSphereSize(double length, double breadth, double height) {

   double diagonal = sqrt(length * length + breadth * breadth + height * height);

   if (diagonal <= 4)

       return 4;

   if (diagonal <= 6)

       return 6;

   if (diagonal <= 8)

       return 8;

   if (diagonal <= 10)

       return 10;

   if (diagonal <= 12)

       return 12;

   return 0;

}

int main() {

   double length, breadth, height;

   int sphereCounts[5] = {0};

   int sphereSize;

   while (true) {

       // Get dimensions of the box

       cout << "Enter the dimensions of the box:\n";

       cout << "Length: ";

       cin >> length;

       cout << "Breadth: ";

       cin >> breadth;

       cout << "Height: ";

       cin >> height;

       if (length <= 0 || breadth <= 0 || height <= 0)

           break;

       sphereSize = getSphereSize(length, breadth, height);

       if (sphereSize == 0)

           cout << "The box cannot fit in any of the spheres";

       else

           cout << "The box can fit in the " << sphereSize << "-inch sphere";

       // Increment the counter

       if (sphereSize == 4)

           sphereCounts[0]++;

       else if (sphereSize == 6)

           sphereCounts[1]++;

       else if (sphereSize == 8)

           sphereCounts[2]++;

       else if (sphereSize == 10)

           sphereCounts[3]++;

       else if (sphereSize == 12)

           sphereCounts[4]++;

       cout << "\n\n";

   }

   cout << "\nNumber of 4-inch spheres: " << sphereCounts[0];

   cout << "\nNumber of 6-inch spheres: " << sphereCounts[1];

   cout << "\nNumber of 8-inch spheres: " << sphereCounts[2];

   cout << "\nNumber of 10-inch spheres: " << sphereCounts[3];

   cout << "\nNumber of 12-inch spheres: " << sphereCounts[4];

   cout << endl;

   return 0;

}

Explanation:

The "cmath" library is included in the c++ program. The getSphereSize function is used to return the sphere size the rectangle dimension can fit into. It program continuously prompts the user for the length, breadth, and height of the rectangle and passes the values to the getSphereSize function in the while but breaks if any or all of the variable value is zero.

The sizes of the sphere objects in inches are collected in an array of five integer values of zeros and are incremented by one for every match with a rectangle.

Where are the kidneys located?
a) Attached to the bladder
b) Lower back
c) Upper back
d) Middle back
e) Chest cavity
f the following is acian of health

Answers

Answer:

B

Explanation:

Your kidneys are fist-sized organs shaped like beans that are located at the back of the middle of your trunk, in the area called your flank. They are under the lower part of your ribcage on the right and left sides of your backbone.

When a program is adapted to run on multiple processors in a multiprocessor system, the execution time on each processor is comprised of computing time and the overhead time required for locked critical sections and/or to send data from one processor to another. Assume a program requires t = 100 s of execution time on one processor. When run p processors, each processor requires t/p s, as well as an additional 4 s of overhead, irrespective of the number of processors. Compute the per-processor execution time for 2, 4, 8, 16, 32, 64, and 128 processors. For each case, list the corresponding speedup relative to a single processor and the ratio between actual speedup versus ideal speedup (speedup if there was no overhead).

Answers

I only need points for my questions

Pls awnser I will mark brainliest math

Answers

It’s 34....!!!! i did this before

Answer:

2788 or 116

Explanation:

It's common to print a rotating, increasing list of single-digit numbers at the start of a program's output as a visual guide to number the columns of the output to follow. With this in mind, write nested for loops to produce the following output, with each line 60 characters wide: | | | | | | 123456789012345678901234567890123456789012345678901234567890

Answers

Answer:

The program in python is as follows:

for i in range(0,6):

   for i in range(0,9):

       print(" ",end='')

   print("|",end='')

print()

for i in range(1,61):

   print(i%10,end='')

Explanation:

See attachment for program output format

The next two instructions create a nested for loop

for i in range(0,6):

   for i in range(0,9):

This prints 9 spaces

       print(" ",end='')

This prints a vertical line at the top of the end of the spaces printed

   print("|",end='')

This prints a new line

print()

This iterates from 1 to 60

for i in range(1,61):

This prints 1, 2, 3....9, then 0, 6 times on a straight line

   print(i%10,end='')

PLEASE HELP ME WITH THIS i will mark you brainlist

Answers

Answer: you have to check your email and click on the microsoft email they sent you and enter the code in the email.

Explanation: plz mark brainliest

Use three or more sentences to explain to someone why they might need to use a virtual machine.

Answers

Answer:

Benefits of Virtualization

Reduced capital and operating costs.

Minimized or eliminated downtime.

Increased IT productivity, efficiency, agility and responsiveness.

Faster provisioning of applications and resources.

Greater business continuity and disaster recovery.

Simplified data center management.

of what is famous Ted Nelson?​

Answers

Answer:

Nelson proposed a system where copying and linking any text excerpt, image or form was possible.

Explanation:

Ted Nelson is one of the theoretical pioneers of the world wide web who is best known for inventing the concept of hypertext and hypermedia in the 1960s. As one of the early theorists on how a networked world would work.

How I know:

I goggle it.

If we use 6 bits for representing positive and negative numbers using 2's
complement methods, what is the value of 11100?

Answers

Answer:

-4


Explanation:
In binary, 11100 is 28
But in the two’s complement method, it will equals = (-4).
the last number always represents negative number.
In other words, if this (101010) with 6 digits. Without using two’s complement method, it would be 42 in binary. But with two’s complement method, it would ( - 22)


I hope this helps. Please don’t hesitate to ask if u concerning my answer
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Select the correct answer.
A computer using a connectionless network protocol sends too many data packets to another computer, causing loss of a few packets. As a result, the message appears jumbled to the user at the destination computer. How does TCP overcome this issue?
A.
by using flow control
B.
by using cables
C.
by using terminals
D.
by using a larger IP address
Please only answer if you are 100% sure

Answers

Answer:

D by using a larger IP address correct

Explanation:

Correct answer I hope this helps you :)

An algorithm to print a set of 10 integers in ascending order

Answers

Answer:

Program  - Array Sorting

Author   - Vishal Solanki

Language - C Language

Date     - 03/02/2018 (dd/mm/yyyy)

*/

//IDE used for this code is "Visual Studio 2017"

#include <stdio.h>              //including stdio.h for printf and other functions

#include<conio.h>

int main()                        //default function for call

{

int a[100],n,i,j;

printf("Array size: ");

       scanf("%d",&n);

       printf("Elements: ");

       

     for(i=0;i<n;i++)

   {

       scanf("%d",&a[i]);

   }

for (int i = 0; i < n; i++)                     //Loop for ascending ordering

{

 for (int j = 0; j < n; j++)             //Loop for comparing other values

 {

  if (a[j] > a[i])                //Comparing other array elements

  {

   int tmp = a[i];         //Using temporary variable for storing last value

   a[i] = a[j];            //replacing value

   a[j] = tmp;             //storing last value

  }  

 }

}

printf("\n\nAscending : ");                     //Printing message

for (int i = 0; i < n; i++)                     //Loop for printing array data after sorting

{

 printf(" %d ", a[i]);

}

for (int i = 0; i < n; i++)                     //Loop for descending ordering

{

 for (int j = 0; j < n; j++)             //Loop for comparing other values

 {

  if (a[j] < a[i])                //Comparing other array elements

  {

   int tmp = a[i];         //Using temporary variable for storing last value

   a[i] = a[j];            //replacing value

   a[j] = tmp;             //storing last value

  }

 }

}

printf("\n\nDescending : ");                    //Printing message

for (int i = 0; i < n; i++)                     //Loop for printing array data after sorting

{

 printf(" %d ", a[i]);                   //Printing data

}

return 0;          //returning 0 status to system

getch();

}

//Ouput

/*

Array size: 10

Elements :  3  4  7  6  5  1  2  8  10  9

Ascending :  1  2  3  4  5  6  7  8  9  10

Descending :  10  9  8  7  6  5  4  3  2  1

*/

Explanation:

What is the final gear reduction of a compound gear reduction of 36 to 12 for the first stage and 60 to 12 for the second stage?
A. 0.067
B. 0.533
C. 8
D. 15

Answers

Answer:

8

Explanation:

Gear reduction = driven gear teeth / driving gear teeth

First stage reduction :

Driven gear teeth = 36

Driving gear teeth = 12

36 /12 = 3

Second stage reduction :

Driven gear teeth = 60

Driving gear teeth = 12

60 /12 = 5

First stage + second stage

3 + 5 = 8

What are the challenges of giving peer feedback in peer assessment

Answers

Feeling of underachievement

Answer:

There can some challenges when giving and receiving peer feedback in a peer assessment. Some people can be harsh in their assessments of your work. Some students cannot take that and because of that it can cause them to question a lot of their work. People can also be wrong when it comes to the assessment

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