NCERT Solutions For Class 12 Physics Chapter 12 Atoms PDF Download

NCERT Solutions For Class 12 Physics Chapter 12 Atoms PDF Download

NCERT Solutions For Class 12 Physics Chapter 12 Atoms PDF contain answers and explanations of questions given in textbooks of National Council of Education Research.

You can download the NCERT Solutions Class 12 Physics Chapter 12 Atoms files:

Download NCERT Solutions For Class 12 Physics Chapter 12 Atoms PDF Download

Question 12.1:
Choose the correct alternative from the clues given at the end of the each statement:
(a) The size of the atom in Thomson’s model is ………. the atomic size in Rutherford’s model. (much greater than/no different from/much less than.)
(b) In the ground state of ………. electrons are in stable equilibrium, while in ………. electrons always experience a net force. (Thomson’s model/ Rutherford’s model.)
(c) A classical atom based on ………. is doomed to collapse. (Thomson’s model/ Rutherford’s model.)
(d) An atom has a nearly continuous mass distribution in a ………. but has a highly nonuniform
mass distribution in ………. (Thomson’s model/ Rutherford’s model.)
(e) The positively charged part of the atom possesses most of the mass in ………. (Rutherford’s model/both the models.)
Answer
(a) The sizes of the atoms taken in Thomson’s model and Rutherford’s model have the same order of magnitude.
(b) In the ground state of Thomson’s model, the electrons are in stable equilibrium. However, in Rutherford’s model, the electrons always experience a net force.
(c) A classical atom based on Rutherford’s model is doomed to collapse.
(d) An atom has a nearly continuous mass distribution in Thomson’s model, but has a highly non-uniform mass distribution in Rutherford’s model.
(e) The positively charged part of the atom possesses most of the mass in both the models.

NCERT Solutions for Class 12 Maths
NCERT Solutions for Class 12 Maths
NCERT Solutions for Class 12 Maths

 

NCERT Solutions For Class 12 Physics PDF Download 2018-19

NCERT Solutions For Class 12 Physics Chapter 1 Electric Charges And Fields , Chapter 2 Electrostatic Potential And Capacitance , Ch 3 Current Electricity , Chapter 4 Moving Charges And Magnetism , Chapter 5 Magnetism And Matter , Ch 6 Electromagnetic Induction , Chapter 7 Alternating Current , Chapter 8 Electromagnetic Waves , Ch 9 Ray Optics And Optical Instruments, Chapter 10 Wave Optics , Chapter 11 Dual Nature Of Radiation And Matter, Ch 12 Atoms , Chapter 13 Nuclei , Chapter 14 Semiconductor Electronics Materials Devices And Simple Circuit, Ch 15 Communication Systems in PDF CBSE, UPSC 2018-19.

 

 

 

 

NCERT Solutions For Class 12 PDF Download (Free)

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NCERT Books For Class 12 – All Subjects (2018-19)

 

The Ncert Books For class 12th are available for download here. For session 2018-19 Ncert Books For class 12 are uploaded here for reference (free). NCERT Books For Class 12 download for Accountancy, Biology, Business Studies, Chemistry , Economics , English , Geography , Hindi , History, Mathematics , Physics , Political Science ,  Psychology , Sanskrit ,  Sociology , Urdu in PDF can be downloaded.