Detailed Solutions

Solution 6 : Conceptually Confused !

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                                                                     (Click the picture to refer problem statement)

Here, we present the solution for Problem 6 : Conceptually Confused !

The solution tries to give a proper and a detailed insight of the 2 topics and also explains how the connection between the 2 topics has been made. It includes :

  • Concept of Fluids
  • Arduino (Microcontroller)
  • Pressure transducer & LDR (Light Dependent Resistor) working
  • LED

Efforts has been made to make the approach more understandable for beginners as well by adding flowcharts and diagrams to simplify the situation. Make sure that you have a look at them carefully. The solution is designed in a very lucid language !

Tip : If you haven’t yet explored about Arduino, Do explore and learn about it because, it is indeed very interesting !

Download the solution file by clicking here – DOWNLOAD

final Solution- conceptually confused

Solution : Vectors on Board

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  • As mentioned in the problem statement description, this problem is designed to connect both of these beautiful subjects : Chess and Physics. So, having a problem which needs just the basics of the subject was required.

So, from the physics side, we have Vectors  – the basic concept in high school Physics while from chess side we need to learn just the Chess Notations. 

In part 1 or (a),

We learn the procedure to calculate the displacement vector. This can be achieved by 2 methods – One is quite quick than the other. So I am just terming it as ‘Quick Method‘ while the second one is the ‘Polygon law of Vector Addition‘. 

In part-2 or (b) :

We try to answer the question by changing the position of origins. 

Overall, I see this as a ‘fun’ problem and not a very calculation intensive problem. So, just Chill and Solve the problem !!

I am attaching the solution file for the problem below

Solution :

DOWNLOAD

web final vectors on board

Enjoy Learning !! 

All the Best !!

Solution to Cricket Problem

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Have a look at question once again : QUESTION

This question is like an ultimate test of comprehension. The Key is to extract the necessary information from the question. This quality is very much essential for the competitive exams like JEE Advanced. 

The Solution is divided into 2 parts : Part(a) solution & Part-(b) solution

In part (a), the explanation to the maximum effort chart is covered. Through this, the velocity-time graphs are explained and various topics like it’s behaviour, how to calculate displacement from v-t graph, etc has been covered. 

In part (b), we try to predict the result of the game based on some time calculations. Also, we try to analyze the Last ball situation in detail

At the very end, we try to highlight the parts in the question which were important to be noted since that information had to be used while solving the problem. And also, not all information given in the question is relevant. Just pick the important ones and Ignore the Rest

Topics Covered :
  • velocity-time graphs (Kinematics)
  • Time taken by charge in magnetic field
  • Nature of the path covered by charged particle in magnetic field
  • Use of F = q(v x B) for direction

Solution :

DOWNLOAD

Final-Solution-Cricket-Problem-4 (1)

Keep Learning !

Solution 3 : Smartwork > Hardwork

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Have a look at the problem once again if needed : QUESTION 

Here we have the Solution to the problem : Smartwork > Hardwork !!

The level of the problem is EASY in comparison to the previous 2 problems (Chess OR Physics?   &    Bhelpuri Problem). The problem is mainly based on Electrostatics 

  • The problem gets it’s name based on the approach you choose to solve the problem & get the answer. The thing which I want to tell from my side is that, Try to read the problem carefully before starting & most importantly, Observe & Analyze the problem. Just one good observation can reduce a lot of work of yours !!

SOLUTION :

DOWNLOAD
Solution to problem - Smartwork vs Hardwork

All the Best !! and Enjoy Reading the solution !!

Keep Learning !

Solution 2 : Bhelpuri Problem !?

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Here we have the solution to our Bhelpuri Problem !!

TIP :

Go through the solution thoroughly. Get an idea of the setup of the problem. If needed, before starting to read the solution once again go and have a look at the problem statement. The problem has a lot of concepts mixed together and that’s how it gets it’s name ‘Bhelpuri‘. So try to go step by step. The solution will guide you to build a procedure in order to finally solve the problem

I have attached the flowchart below in order to get the process. But the flowchart is just to be used as a reference while going through the solution.

Flowchart :

Solution to the Problem :

The solution has been attached in the form of PDF below. Go through it carefully.  Atleast I will say that I personally got to learn a lot while framing this problem & I am sure you will also feel the same after reading the solution !!

Topics Covered : 
  • Plotting graphs (Maths Portion)
  • Collision topic in Center of Mass
  • Projectile Motion
  • Somewhat Electrostatics
  • Basics of electric circuit

DOWNLOAD

Final Solution-to-Bhelpuri-Problem-2

Keep Learning !

Solution 1 : Chess OR Physics ?

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In this blog, we will be discussing the Solution to ‘Chess OR Physics’. Before proceeding further, make sure you have gone through the problem statement

Problem Statement (Click Here)

This solution is designed for everyone, whether you are a beginner, intermediate, or Advanced. The solution has been written in a very lucid language. The reason is simple! Let’s just keep everything easy. It’s very detailed, and if you read it slowly and thoroughly, I am sure that you will get a very deep insight into the concept of the center of mass (COM). Enjoy Reading and Keep Learning

I have attached the flow charts for the respective question parts of the solution. These will help you to get a better overview of the solution. 

(Solution is attached in a PDF file after the 3 flowcharts)

Solution to Chess or Physics - There are two methods to locate the center of mass of a body, the first one being the Traditional method, and the second one is by using symmetry
Solution to Chess or Physics - Part B of the solution shows the analysis of the board and the pieces.
Solution to Chess or Physics - Part C of the solution shows the torque calculations due to White's move 1.e4

Solution to the Problem :

Here, I am attaching the PDF file for the solution to the problem. Go through it thoroughly. 

Remember that the intention behind making this problem was not just to make the solver arrive at the solution, but instead it was to make the solver appreciate the beautiful kind of symmetry that the chessboard holds!

Topics Covered :

  • Center of Mass (COM) Calculation
  • Torque Calculation (From the Rotational Motion chapter)
Download the PDF File (Click Here) Solution for Chess OR Physics _

Physics and Electronics Originals (Until Now) :

Keep Learning!