NCERT Solutions for Class 12 Physics Chapter 12

NCERT Solutions for Class 12 Physics Chapter 12: The twelfth chapter of NCERT Class 12 Physics is Atoms. In this chapter, students will learn about concepts such as atomic models, Bohr model of the Hydrogen atom, emission spectrum etc. Students learn in-depth about the different concepts of Atoms after referring to Embibe’s NCERT solutions, which are prepared as per the latest curriculum in a comprehensive manner.

Class 12 Physics Chapter 12 NCERT Solutions contain answers to all the in-text questions at the chapter’s end. Embibe has over 600 practice questions for all the sub-topics covered in Chapter 12 of Physics to help students reach their goals. Students appearing for the board exams should invariably practice the NCERT questions on Embibe for Atoms and its related concepts. Scroll down to learn more about NCERT Solutions for Class 12 Physics Chapter 12.

Explore Study Material for CBSE Class 12 Physics Chapter 1 Here

NCERT Solutions for Class 12 Physics Chapter 12: Important Topics

In NCERT Class 12 Physics Chapter 12, students will study about atoms, their structure, particles composing an atom, the nuclear characteristics and features, the alpha-particle trajectory, electrons, protons and neutrons, etc. NCERT Solutions for Class 12 Physics Chapter 12 provided on Embibe are based on CBSE guidelines.

Students looking for ways to score full marks in Physics can refer to Embibe’s Big Book for Physics, NCERT exemplars, Embibe 3D videos, Embibe Explainers, etc., for. Besides, Class 12 students can also learn about the chapter by solving hundreds of questions on each sub-topics. After learning about the chapter, students can practice questions on Embibe and take mock tests. The table below lists the important topics in the chapter:

Sr. No.	Topic Name
1	Early Atomic Models
2	Alpha-Particle Scattering And Rutherford’s Nuclear Model Of Atom
3	Atomic Spectra
4	Bohr Model Of The Hydrogen Atom
5	De Broglie’s Explanation Of Bohr’s Second Postulate

NCERT Solutions for Class 12 Physics Chapter 12: Points to Remember

Below are some key takeaways from Class 12 Physics Chapter 12 Atoms:

Atom is electrically neutral and thus contains an equal amount of both positive and negative charges.
In Thomson’s model, the atom is a spherical cloud of positive charges with electrons embedded in it.
As per Rutherford’s model, most of the mass of the atom and all its positive charge is concentrated in a small nucleus (typically one by ten thousand to the size of an atom), and the electrons revolve around it.
Rutherford’s model says that atoms are unstable as the accelerated electrons revolving around the nucleus must spiral into the nucleus. This contradicts the stability of matter.
Niel’s Bohr’s model on hydrogenic (single electron) atoms introduces three postulates and lays the foundations of quantum mechanics.
de Broglie’s hypothesis that electrons have a wavelength λ=h/mvλ=h/mv explains Bohr’s quantised orbits by bringing in the wave-particle duality. The orbits correspond to the circular standing waves in which the circumference of the orbit equals a whole number of wavelengths.

NCERT Solutions for Class 12 Physics: All Chapters

The complete details for the NCERT Solutions for Class 12 Physics are given below:

1st Chapter- Electric Fields and Charge
2nd Chapter- Electrostatic Potential and Capacitance
3rd Chapter- Current Electricity
4th Chapter- Moving Charges and Magnetism
5th Chapter- Magnetism and Matter
6th Chapter- Electromagnetic Induction
7th Chapter- Alternating Current
8th Chapter- Electromagnetic Waves
9th Chapter- Ray Optics and Optical Instruments
10th Chapter- Wave Optics
11th Chapter- The Dual Nature of Radiation and Matter
12th Chapter- Atoms
13th Chapter- Nuclei
14th Chapter- Semiconductor Electronics
15th Chapter- Communication System

Related Information of CBSE Class 12

CBSE Class 12 Physics Chapter wise Questions with Answer	CBSE Class 12 Physics Marking Scheme
CBSE Class 12 Physics Notes	Class 12 Physics Syllabus CBSE
Physics Sample Papers for CBSE Class 12	Best NCERT Books of Physics for Class 12
CBSE NCERT Solutions for Class 12 Physics	CBSE NCERT Solutions for Class 12 Biology
CBSE NCERT Solutions for Class 12 Chemistry	CBSE NCERT Solutions for Class 12 Maths

FAQs on NCERT Solutions for Class 12 Physics Chapter 12

Q: What are the concepts covered in NCERT Class 12 Physics Chapter 12?

Ans: In NCERT Class 12 Physics chapter 12, students will learn about Alpha-particle scattering and Rutherford’s nuclear model of an atom, atomic spectra, Bohr Model of the Hydrogen atom, De Broglie’s explanation of Bohr’s second postulate.

Q: What are atoms made of?

Ans: Atoms are made up of the same amount of negative and positive charges. In Thomson’s model, atoms were described as a spherical cloud of positive charges with embedded electrons.

Q: Where can I find practice questions on CBSE Physics Class 12 Chapter 12?

Ans: Students can find practice questions on CBSE Class 12 Physics Chapter 12 on Embibe for.

Q: Does Embibe provide videos for CBSE Class 12 Physics?

Ans: Yes, Embibe provides interesting and engaging 3D videos for CBSE Class 12 Physics to help students score good marks in exams.

Q: How many practice questions are there for CBSE Class 12 Physics Chapter 12?

Ans: There are over 600 practice questions for CBSE Class 12 Physics Chapter 12 on Embibe.