12 th Physics Question Answers for Quick Revision. Speech tool button can be used for listening the question and answer for better understanding. The chapters covered in this app are: PHYSICS ONE CHAPTERS -CIRCULAR MOTION -GRAVITATION -ROTATIONAL MOTION -OSCILLATIONS -ELASTICITY -SURFACE TENSION -WAVE MOTION -STATIONARY WAVES -KINETIC THEORY OF GASES -RADIATION PHYSICS TWO CHAPTERS -WAVE THEORY OF LIGHT -INTERFERENCE OF LIGHT -ELECTROSTATICS -CURRENT ELECTRICITY -MAGNETIC EFFECTS OF ELECTRIC CURRENT -MAGNETISM -ELECTROMAGNETIC INDUCTION -ELECTRONS AND PHOTONS -ATOMS, MOLECULES AND NUCLEI -SEMICONDUCTORS