This book namely "Experimental Applied Physics-I" contain the chapter like Slide Calipers, Screw Guage, Spherometer, Coefficient of Friction, Spring Constant, Moment of Inertia, Viscosity, Coefficient of Linear Expansion of solid, Boyle's Law and Specific Gravity. It has been written with a view to cater the need of undergraduate Diploma students. This book is written strictly in accordance with the new syllabus introduced by West Bengal State Council of Technical and Vocational Education and Skill Development for the 1st Semester Students of Diploma Engineering (Polytechnic).