how many and which questions were repeated in neet 2020?
Dear Aspirant,
the repeated questions for NEET examinations are generally in most cases low, as the level of competition is very high. In most cases similar kinds of questions are asked instead of repeating the same question. However, there are a few times where a question or two are repeated from the previous years. Hence to get to know of some of these repeated questions or similar questions that are asked through out the year in NEET, you may solve the previous years question papers. They are very beneficial as it not only gives you an idea of the similar questions but also helps you get familiar with question paper pattern.
To view the previous years question papers, kindly visit the link provided below.
https://medicine.careers360.com/articles/neet-question-paper
Answer laterparallel series combination of
Sorry, but you forgot to mention or tag the subject of the question and the question seems incomplete. Kindly restructure your question and ask again including the necessary details. This will help us to provide you with the correct answer and explaination.
Hope you understand.
Good luck!
construction of working galvonometr
Hello Candidate,
The galvanometer is a simple electrochemical device which is used to measure the supply of current in the circuit or in a loop.
Galvanometer consists of several divisions including main scale divisions and small scale division for accurate measurement of the current supply, when the fluctuations age produced in the device upon changing the voltage and other electrical parameters.
Hope this information helps you!!
To read the theory of Modern Physics, I can do it from HC Vermas book
Dear student,
I would not recommend you to study the theory of modern physics from H.C Verma. The theory given in the book is not sufficient and does not explains the concept well. However the problems are really good. I would advice you to study this topic from Resnick Halliday, it is a great book for theory for physics. You concepts will build up strongly and you will understand the topic really well. After reading from this book you can go to hc verma and solve it's problems.
what is the mains 2021 weitage chapters
Hello Aspirant,
For JEE-Main 2021, complete chapter wise weightage for each subject is described below :-
@Physics
Modern Physics:- 20 marks
Heat and Thermodynamics :- 12 marks
Optics:- 12 marks
Current Electricity :- 12 marks
Electrostatics :- 12 marks
Magnetics :- 8 marks
Unit, Dimension and Vector:- 4 marks
Kinematics :- 4 marks
Laws of motion :- 4 marks
Work, Power and Energy :- 4 marks
Centre Of Mass, Impulse and Momentum :- 4 marks
Rotation :- 4 marks
Gravitation :- 4 marks
Simple Harmonic Motion :- 4 marks
Solids and Fluids :- 4 marks
Waves :- 4 marks
Electromagnetics Induction and AC :- 4 marks
@Chemistry
Transition Elements and Coordination Chemistry :- 12 marks
Periodic table and Representative Elements :- 12 marks
Thermodynamics And Gaseous State:- 8 marks
Atomic Structure:- 8 marks
Chemical Bonding:- 8 marks
Chemical And Ionic Equilibrium:- 8 marks
Solid State And Surface Chemistry :- 4 marks
Nuclear Chemistry And Environment:- 8 marks
Mole Concept :- 4 marks
Redox Reaction :- 4 marks
Electrochemistry :- 4 marks
Chemical Kinetics:- 4 marks
Solution and Colligative Properties :- 4 marks
General Organic Chemistry:- 4 marks
Stereochemistry:- 4 marks
Hydrocarbon :- 4 marks
Alkyl Halides :- 4 marks
Carboxylic Acid and their Derivatives:- 4 marks
Carbohydrates, amino acid and Polymers :- 4 marks
Aromatic Compounds :- 4 marks
@Mathematics
Coordinate Geometry :- 20 marks
Limits, Continuity and Differentiability :- 12 marks
Integral Calculus :- 12 marks
Complex numbers and Quadratic Equation :- 8 marks
Matrices and Determinants :- 8 marks
Statistics and Probability :- 8 marks
Vector Algebra :- 8 marks
Sets, Relation and Function:- 4 marks
Permutations and Combinations :- 4 marks
Binomial Theorem and Its Application:- 4 marks
Sequences and Series:- 4 marks
Trigonometry :- 4 marks
Mathematical Reasoning :- 4 marks
Differential Equation :- 4 marks
Statics and Dynamics :- 4 marks
Differential Calculus :- 4 marks
For complete details about important chapters and other weightage related information kindly check out the links given below :-
https://engineering.careers360.com/articles/jee-main-syllabus-weightage
You can also check out JEE-Main 2021 Learner package for your preparation :-
https://learn.careers360.com/jee-main-coaching/?utm_source=%20QnA
I hope this information helps you.
Good Luck!!
derive the formula of torque in term of MLT
Since, Moment of Inertia (M.O.I) = Radius of Gyration 2 Mass
The dimensional formula of Moment of Inertia = M 1 L 2 T 0 . . . (2)
And, Angular Acceleration = Angular velocity Time -1
The dimensional formula of Angular Acceleration = M 0 L 0 T -2 . . . (3)
On substituting equation (2) and (3) in equation (1) we get,
Torque = Moment of Inertia Angular
Acceleration
Or, I = [M 1 L 2 T 0 ] [M 0 L 0 T -2 ] = [M L 2 T -2 ].
Therefore, the torque is dimensionally represented as [M L 2 T -2 ].
which chapters should be done before starting which simple harmonic motion chapter in physics class 11 for neet ug ???
Hello Candidate,
Simple Harmonic Motion is one of the easiest chapters in 11th Physics. If you are preparing for the NEET Exam, then surely you have to read this chapter. Now before studying this chapter, there is not any fix thing, that you have to study some chapters before reading it.
But I am listing some chapters, that you can study before starting the SHM chapter. These are listed orderwise below.
- Kinematics
- Newton Laws of Motion
- Work, Energy and Power
- Rigid Body Dynamics
- SHM
Hope it helps.
can i start surface tention chapter directly from class 11 physics for neet ug?which are the basic chapters to be done for surface tention?
Hi candidate,
You can start the surface tension chapter by gradually learning from the basics such as force due to surface tension, pressure in a bubble due to surface tension below and above water and the role of surface tension in day to day life activities.
Since in the class 11th examinations the questions are mostly focused on derivations and a bit of numericals, hence the NCERT books can definitely help you to get a good score in the exams.
Hope that this answer helps you
Treatment of amonia on excess of alkyl halide yields
Hello
The order of reactivity of halides with amines are is RI>RBr>RCl.
Lets us take a example:
When Excess ethyl iodide is treated with ammonia then the product formed is tetraethylammonium iodide
NH3+C2H5I-------->C8H20N+
Tetra ammonium iodide is a quaternary salt .
Good Luck
which Aniline on acetylation gives
It might be possible that you have missed some part of the question. Because after the word GIVES you haven't mentioned any compound, so that I can tell which anniline it would be.
Now second possibility that you are asking that - what aniline on acetylation gives ?
So, considering the second possibility, here is my answer :-
Acetylation of anniline gives acetanilide , which undergoes nitration at low temperature, yielding the para-nitro product in high yield.
Also note that - Acetylation of aniline reduces its activation effect, because of resonance the lone pair of electrons on nitrogen of acetanilide gets delocalised towards carbonyl group.
