Hiii dear,

Best books are as follows:

Modern Physics

1. Quantum Physics: H.C. Verma
2. Concepts of Modern Physics: Beiser, Mahajan, Choudhury
3. Introduction to Quantum Mechanics: David J. Griffiths
4. Nuclear Physics: D.C. Tayal

Solid State Physics, Devices and Electronics

1. Solid State Physics: S.O. Pillai
2. Solid State Physics: Puri & Babbar
3. Electronic Devices & Circuit Theory: Boylestad & Nashelsky
4. Digital Fundamentals: Floyd
5. Electronics: B. Ghosh

Good luck!!!