JEE

The universal set U includes the set of all natural numbers. It includes both the even and odd numbers. U= {1,2,3,4,5,6,7,8,9,10.}. U comprises all elements of Set A and Set B.

Sets is a collection of objects or members which are distinct objects. Normally, the objects are listed within curly braces {}. Example of a set - set of vowels in English - {a, e, i, o, u). Sets class 11 includes multiple exercises on sets concepts. 

Yes, one can see the atoms, but not with the naked eye. One needs to use specialised microscopes to see the atoms. To see the atoms, one can use electron microscopes such as electron ptychography and TEM, or they can also use Scanning Tunneling Microscope (STM).

Helium (He) is the smallest atom. It has a smaller physical size as the protons in Helium create a stronger nuclear charge to pull its electrons closer to nucleus. The hydrogen is the lightest element.

In molecules, atoms are held together by the chemical bonds, that are strong attractive forces. The main two types of chemical bonds include ionic bond and covalent bond.

The following are the steps one must follow to draw the structure of an atom: First, find out the atomic number of the element on the periodic table, then draw a small central circle called the nucleus that includes the protons and neutrons. Next, there will be concentric circles around the nucleus

The following are the topics covered in this chapter: Electric Field and Field Lines, Gauss's Law, Electric Dipole, Conductors and Insulators, and Electric Flux. 

For JEE Main exam, the Electric Charges and Fields is an important chapter. It is a part of Electrostatics unit. The weightage of this unit is around 6-9% of the total Physics section. You should expect around 3-5 questions in this unit including the questions from the class 12 physics chapter 1.

In the medical entrance test NEET, this chapter has a moderate weightage. You can expect around 2-3 questions of this chapter that contributes to the 3-5% of the total marks in the Physics section.

NTA will release NCHMCT JEE 2027 application form in December 2026. Registration details and application form link will be available on the official website.