You can download the NCERT Solutions for Class 11 Physics Ch 12 Thermodynamics . Prescribed textbook for CBSE is standard XI NCERT course book for Physics.
NCERT Solutions Class 11 Physics Chapter 12 Thermodynamics PDF Download
Download NCERT Books For Class 11 Physics PDF Download (New)
CBSE Syllabus NCERT in Hindi Medium NCERT Books NCERT Solutions