NCERT Solutions for Class 12 Physics Chapter 12 Atoms
NCERT solutions for class 12 physics chapter 12 Atoms: Do you know that an atom is electrically neutral, which tells that atoms contain an equal number of positive and negative charges. The solutions of NCERT class 12 physics chapter 12 atoms explain questions related to different models of the atom, their drawbacks, hydrogen spectra, and Debroglie hypothesis. CBSE NCERT solutions for class 12 physics chapter 12 atoms will help you in board exam preparation. The solutions of NCERT plays a major role in making the concepts easy and hence will help in competitive exams also. The questions are divided in to exercise and additional exercise
Some of the important formulas of the chapter atoms which will help in NCERT solutions for class 12 physics are given below.
The various series in line spectrum of atomic hydrogen are:
- According to Bohr’s postulates for stationary orbit angular momentum
Where n is the quantum number
The total energy of the electron in the stationary states of the hydrogen atom in electronvolt is given by
Another important formula in NCERT is the
De Broglie wavelength
Where ‘h’ is Planck's constant and mv is the momentum. This relation can be modified in terms of the kinetic energy of the particle. Try to derive it yourself.
NCERT solutions for class 12 physics chapter 12 atoms exercise:
NCERT solutions for class 12 physics chapter wise
NCERT solutions for class 12 physics chapter 12 Atoms
NCERT solutions subject wise
Importance of NCERT solutions for class 12 physics chapter 12 atoms:
For CBSE board exam on an average 3 to 4 marks questions are asked from the chapter. The solutions of NCERT class 12 physics chapter 12 atoms will help in securing full marks in board exam for this chapter. As far as the NEET exam is considered up to 2 questions are expected from the chapter. The NCERT solutions for class 12 physics chapter 12 atoms will also help to perform better in exams like JEE Main and other competitive exams.
Frequently Asked Question (FAQs) - NCERT Solutions for Class 12 Physics Chapter 12 Atoms
Question: How many questions from the chapter atoms comes in CBSE board exams?
one or two questions are usually asked in the board exams from class 12 chapter atoms. It can be a 2 or 3 mark question
Question: What is the importance of the chapter for engineering and medical entrance exams?
The class 12 physics chapter atoms are important for both engineering and medical exams. At least one question can be expected from atoms for both JEE Main and NEET
Question: What are the important topics of the class 12 NCERT chapter atoms
The hydrogen spectrum, energy of atoms, Bhor model of atoms, Bhor postulates etc are important topics of the chapter
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