{Set of 2 Books} B.Sc. Physics - SY Semester 4 - As per SPPU's 2020 CBCS Pattern [OSCILLATIONS, WAVES AND SOUND (PHY-241) Paper 1, OPTICS (PHY-242) Paper 2](Paperback, Dr. P. S. Tambade, Dr. S. D. Aghav, B. M. Laware, V. K. Dhas)