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

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,

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

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

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

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

Hello aspirant,

This kind of question and the student experts are unable to find what you have written in the question. Already it is suggested that the ones who are questioning should not ask this sort of absurd questions to the student experts apart from education or career related topics.