13 Aug 2018

Top Universities In India For MBA (By MHRD - NIRF Govt. of India, Official University Ranking)

Here you will get the Name of the University, City and State of the University, Overall Score and Rank in the country; according to MHRD (NIRF - National Institutional Ranking Framework) 2018 for Management Courses.


Indian Institute of Management Ahmedabad

   Ahmedabad Gujarat   79.18 1

Indian Institute of Management Bangalore 

   Bengaluru   Karnataka 77.33 2

Indian Institute of Management Calcutta 

    Kolkata   West Bengal 77.08   3

Indian Institute of Management Lucknow  

   Lucknow Uttar Pradesh   68.63   4

Indian Institute of Technology Bombay   

   Mumbai Maharashtra 66.80 5

Indian Institute of Management Kozhikode 

  Kozhikode Kerala 65.21 6

Indian Institute of Technology Kharagpur  

    Kharagpur West Bengal   63.36   7

Indian Institute of Technology Delhi 

     New Delhi Delhi   63.31 8

Indian Institute of Technology Roorkee 

    Roorkee Uttarakhand 62.95 9

Xavier Labour Relations Institute  

Jamshedpur Jharkhand 62.66   10

Indian Institute of Management Indore

     Indore Madhya Pradesh   60.28   11

Management Development Institute  

    Gurgaon Haryana 59.59   12

Indian Institute of Management Udaipur  

  Udaipur   Rajasthan   59.07 13

National Institute of Industrial Engineering 

    Mumbai Maharashtra 57.02   14

Indian Institute of Management Tiruchirappalli  

  Tiruchirappalli   Tamil Nadu 55.85 15

          Great Lakes Institute of   Management

         Chennai   Tamil Nadu 55.25 16

Indian Institute of Technology Kanpur 

   Kanpur Uttar Pradesh 53.43 17

Symbiosis Institute of Business Management  

  Pune Maharashtra 52.80 18

S. P. Jain Institute of Management & Research 

    Mumbai Maharashtra 52.31 19

Indian Institute of Management Kashipur    

  Kashipur Uttarakhand 51.20   20







































12 Aug 2018

PSAT Scores - PSAT Scores Range What is a Good PSAT Score and Average PSAT Score

What is a Good PSAT Score and PSAT Score Range ?

PSAT stands for Preliminary SAT. Do you know that you can get Scholarship with a good PSAT score and the PSAT score can help you in predicting, how will you perform on future tests like SAT and ACT.
This post will help you in comparing your PSAT score with PSAT Scores of other students.


PSAT score, PSAT scores range, good PSAT score


PSAT Scores Ranges

MATH PSAT Score Ranges 

Below 500 score         
*It is considered a Below Average Score
*This score is less than the average student’s PSAT score

500-550 Score
*It is a Good PSAT Score for Maths
*This score means, you have scored better than 50% of candidates.

560-610 Score
*It is a Competitive Score for PSAT Maths
*You are in top 25% of the testing population. This is considered to be a very good score in PSAT. It also means that you are preparing well for the SAT.

More than 620 Score
Congratulations!!! You are in the top 10% of the students who appeared in the exam. Now you have high chances of getting Scholarship too.

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GRE Vs GMAT-Is GRE better than GMAT !!!


Reading and Writing PSAT Score Ranges


Below 500 Score Range   
*It is a Below Average PSAT score for Reading and writing section
*This score is less than the average student’s PSAT score

500-550 Score
*It is considered a Good PSAT Score
*This score means, you have scored better than 50% of candidates

560-610 Score 
*A Competitive score
*You are in top 25% of the testing population. This is considered to be a very good score in PSAT. It also means you are preparing well for the SAT.

More than 620 Score
Now You are in the top 10% of the students who appeared in the exam. Now you can get the scholarship easily.


Combined PSAT Score 

Below 940 Score        
*Below Average score
*This score is less than the average student’s PSAT score

950-1060 Score
*Good score
*This score means, you have scored better than 50% of candidates who appeared in the PSAT.

1070-1200 Score
*Competitive score
*You are in top 25% of the testing population. This is considered to be a very good score in PSAT. It shows  you are preparing very well for the SAT.

1210-1520 Score
*You are in the top 10% of the students. 
*You can also get Scholarship Now.

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GRE Vs GMAT - A Comparison of GRE and GMAT - Is GRE better than GMAT !!!

Here we will provide you the comparison between GRE (Graduate Record Examinations) and GMAT (Graduate Management Admission Test). So let's analyse-


Why GRE or GMAT ?

GRE- Most graduate schools and many business schools require GRE score
GMAT- The test is necessary for admission to most business schools


GRE vs GMAT, Why GRE, WHY GMAT, GRE or GMAT, GRE cost, GMAT cost


Test Structure of GRE and GMAT

GRE Exam Pattern
*A 60 minutes Analytical Writing section having 2 essays of 30 minutes each.  
*Two 35 minutes Quantitative Reasoning sections
*A 30-35 minutes experimental section that can be either math or verbal
 *It also contains two 30-minutes Verbal Reasoning sections 
GMAT Exam Pattern
*A 30 minutes Analytic section with one essay
*A 30 minutes Integrated Reasoning section
*75 minutes Verbal section.
*75 minutes Quantitative section 

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GRE Exam Pattern and Syllabus 2018 


Test Format of GRE and GMAT

GRE Test Format
GRE is Offered as a computer adaptive by section exam
GMAT Test Format 
GMAT is a computer-adaptive test


How GRE and GMAT are Scored ?

GRE Score Calculation 
Verbal and Quantitative scores from 130 to 170 in 1-point increments
GMAT Score Calculation
In case of GMAT, the overall or composite GMAT score ranges from 200 to 800 in 10-point increments

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GMAT Exam Pattern and Syllabus 2018 


GRE and GMAT Cost

GRE Cost
GRE costs around $195
GMAT Cost
GMAT cost is nearly $250


GRE and GMAT Exam Durations


GRE Exam Duration
Using paper - 3.5 hours  
Using computer- 3.75 hours 
GMAT Exam Duration
It is of 3.5 hours


GRE and GMAT Score Validity

Validity of GRE Score
GRE score validity period is 5 years
GMAT Score Validity
GMAT Score is valid for 5 years


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Why Doctors Wear White Coat and Lawyers Wear Black Coat

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Why the Colour of School Bus is Yellow

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How to Finish Whole Syllabus in ONE NIGHT (One Day) | How to Study for Exams | Night Before Exams Tips

Top 25 Amazing and Cool facts about United States of America (USA)

Facts about North America - North America Map and Globe - Continents of the World

FACTS about EUROPE - MAP of European Countries - European Continent Facts

Islands of North America - Interesting Facts about North American Islands that You Never Knew !!!

Top 10 Largest Airlines in the World (Top 10 Airlines in the World by Revenue and Brand value)

Largest Deserts in the World

Historical Monuments - Famous Landmarks - Famous Places With their Countries

Important International Days and Dates (With UNIQUE COLOR CODES, In January to December Order) - Complete List

Most Popular Newspapers in the World (Top World Newspapers)

Parliaments of Different Countries (Countries and Their Parliament Names)

Important Signs and Symbols with their Meanings (Complete List)

First in the World (List of First in the World, Male and Female) - The Complete List !!!

Intelligence Agencies of the World/ Intelligence Agencies

River Crossing IQ Logic Puzzles & Fun Brain Games (Boat Puzzle Solution/River and Boat Problems)

Famous QUOTES by Albert Einstein | Albert Einstein Quotes | Inspirational Quotes about Life

World Population Live (Live Birth & Death Rate Live, Population by Religion, Population by Country)

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GMAT Exam Pattern and Syllabus 2018 - Latest Pattern of GMAT 2018 -Graduate Management Admission Test (GMAT)

Graduate Management Admission Test (GMAT) is an international level exam for MBA. Nearly 2300 graduate business schools accept the GMAT exam score around the world. Here we will discuss the syllabus for GMAT. You will also find the GMAT exam pattern here.


Analytical Writing Assessment (GMAT)

*One question is asked from this section. The type of question asked in this section is analysis of an argument.
*It is of 30 minutes duration and 
*Score range is 0-6 in 0.5 point increments.


GMAT Exam Pattern and Syllabus 2018 Video


 

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Integrated Reasoning (GMAT)

*It consists of 12 questions. 
*The type of questions in this section include- multi source reasoning, graphics interpretation, table analysis and two part analysis. 
*This section is of 30 minutes. 
*The score range is 1-8 in one point increments.


Quantitative Reasoning (GMAT)

*This section contains 37 questions
*The type of questions asked are data sufficiency and problem solving. 
*Duration of the section is 75 minutes and 
*Score is 0-60 in one point increments

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GRE Exam Pattern and Syllabus 2018 

Verbal Reasoning (GMAT)

*Verbal reasoning section contains 41 questions *Comprehension, critical reasoning, sentence correction are types of questions asked in this section. 
*Verbal reasoning section is of 75 minutes and
*Score Range is 0-60 in one point increments.


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Why Doctors Wear White Coat and Lawyers Wear Black Coat

Why Dogs Cry at Night | Why Dogs Howl at Night | Why Dogs Bark at Night | Why Dogs Weep at Night

Why the Colour of School Bus is Yellow

Why all Planets and Stars are Round in Shape | Why all Planets are Sphere in Shape

How to Finish Whole Syllabus in ONE NIGHT (One Day) | How to Study for Exams | Night Before Exams Tips

Top 25 Amazing and Cool facts about United States of America (USA)

Facts about North America - North America Map and Globe - Continents of the World

FACTS about EUROPE - MAP of European Countries - European Continent Facts

Islands of North America - Interesting Facts about North American Islands that You Never Knew !!!

Top 10 Largest Airlines in the World (Top 10 Airlines in the World by Revenue and Brand value)

Largest Deserts in the World

Historical Monuments - Famous Landmarks - Famous Places With their Countries

Important International Days and Dates (With UNIQUE COLOR CODES, In January to December Order) - Complete List

Most Popular Newspapers in the World (Top World Newspapers)

Parliaments of Different Countries (Countries and Their Parliament Names)

Important Signs and Symbols with their Meanings (Complete List)

First in the World (List of First in the World, Male and Female) - The Complete List !!!

Intelligence Agencies of the World/ Intelligence Agencies

River Crossing IQ Logic Puzzles & Fun Brain Games (Boat Puzzle Solution/River and Boat Problems)

Famous QUOTES by Albert Einstein | Albert Einstein Quotes | Inspirational Quotes about Life

World Population Live (Live Birth & Death Rate Live, Population by Religion, Population by Country)

What Happens Every SECOND! What Happens Every Second in the Universe, World, Our Body, Nature, Economy and on the Internet

Top 10 Youtubers in the World and their Earnings | Most Subscribed Youtube Channel | Richest Youtubers in the World

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10 Aug 2018

Acceptance Angle and Numerical Aperture (NA) (Optical Fiber Communication)

In this post we will discuss two important concepts of optical fibers, these are- Acceptance Angle and Numerical Aperture (NA).

Definition of Acceptance Angle

Acceptance angle is the maximum angle with the axis of the Optical Fiber at which the light can enter into the optical fiber in order to be propagated through it.

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Optical Fiber Communication (Complete)

Now let's understand this concept with the help of this diagram-


Acceptance Angle and Numerical Aperture (NA), optical fibers, Acceptance Angle, Numerical Aperture (NA)
Acceptance Angle and Numerical Aperture (NA) in Optical Fiber

This diagram clearly illustrates the concept of the numerical aperture and acceptance angle. What we mean by Acceptance cone, is also explain here.


Watch the Complete Video Here


 


Structure and Working of the Optical Fiber

Now observe this diagram carefully, two layers of the Optical Fiber- Core and Cladding can be seen in the diagram. These are drawn in pink color. The light rays propagate inside the core that has another layer over it, known as cladding.
Although other protective layers are also there over the cladding layer, But only core and cladding are shown in this image, which is enough to clear the concepts.

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OPTICAL FIBER SOURCES (DESIRABLE PROPERTIES)

The refractive index (the ratio of speed of light in vacuum and the speed of light in the medium) of the core is more than the refractive index of the cladding.
As we also know that, when a light ray propagates from a denser medium to the rarer medium, it deviates away from the normal. But when the angle of incidence is more than the critical angle then this light ray returns back into the same medium. This phenomena is called as the 'Total Internal Reflection' (TIR). 
Although it is a special case of refraction where the incidence angle is more than the critical angle, but here it seems like a reflection phenomena and the light ray is totally reflected back into the same medium. Therefore this phenomena is known as the Total Internal Reflection (TIR).

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OPTICAL FIBER: STRUCTURE AND WORKING PRINCIPLE

The same phenomena of total internal reflection takes place in the optical fibre. Here the core acts as a denser medium while the cladding as a rarer medium. So the light rays propagate inside the core of the optical fiber with the total internal reflections.
But as we have already discussed that for the total internal reflection to take place, it is required that the incidence angle must be more than the critical angle. If this condition is satisfied then the light ray can propagate inside the core of The optical fiber with total internal reflection.

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ADVANTAGES OF OPTICAL FIBER COMMUNICATION
Single-Mode Optical Fiber Advantages

Now again observe the image. This image shows two light rays. Focus on any one light ray. You will see that total internal reflection takes place inside the core every time at the core cladding interface. The reflected ray after total internal reflection acts as the incident ray for the next total internal reflection. As each time the incidence angle is more than the critical angle at the core cladding interface. Therefore the light ray propagates inside the core of The optical fibre with successive total internal reflections.

NOTE- For much better explanation, I suggest you to watch my video lecture given above on this page.


Acceptance Angle and Acceptance Cone

Now first we will understand the concept of acceptance cone. You can see this acceptance cone in the image given above. For the total internal reflection to take place, it is required that the light rays entering into the fibre must be confined to this cone.
It means that if there is any light ray that is entering into the fiber with an angle which is outside this cone, then the total internal reflection will not take place. Because in this case the incidence angle will be smaller than the critical angle (Visualize this condition by observing the image or you may watch the video given here). 

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Graded Index Fibers: Basics, Structure and Working

You can understand it easily with the help of this image also. According to this image, if the angle theta 1 reduces to a certain limit then this light ray goes out of the acceptance cone.
In other words we can say, if the light ray is out of the acceptance cone, then the incidence angle is smaller than the critical Angle and in this case total internal reflection will not take place.

Now you know the concept of acceptance cone. So it is very easy to understand, what is acceptance angle.
Acceptance angle is just the conical half angle of the acceptance cone. This acceptance angle is shown in the diagram here.

As already defined, "Acceptance angle is the maximum angle with the axis of the optical fiber at which light can enter the fiber, in order to be propagated through it".
The light rays that are outside this acceptance cone are not accepted by the optical fiber, that's why it is known as acceptance cone.

Let's now discuss what is Numerical Aperture...


Numerical Aperture (NA)

Numerical aperture in case of optical fiber communication can be defined as- "The light gathering (collecting) capacity of an optical fibre".

The numerical aperture provides important relationship between acceptance angle and the refractive index of the core and cladding.

These relationships are given here in the image below-


Formulas for Numerical Aperture (NA) and Acceptance Angle

Acceptance Angle and Numerical Aperture formula, Numerical Aperture formula
Numerical Aperture and
Acceptance Angle Formulas

Read More-

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FREQUENCY SPECTRUM OF AMPLITUDE MODULATION (WAVEFORMS AND EQUATIONS DERIVATION)

AMPLITUDE MODULATION (TIME DOMAIN EQUATIONS AND WAVEFORMS)

ADVANTAGES AND DISADVANTAGES OF DIGITAL COMMUNICATION SYSTEM

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