Physics · LAWS OF MOTION

Match the device/method in List-I with its physical application in List-II: List-I List-II A Ball bearings I Reduces friction between moving parts in machines B Thin cushion of air II Maintained between solid surfaces in relative motion C Lubricants III Used to reduce kinetic friction in sliding machine parts D Tyres on road IV Provides necessary external force to accelerate car Choose the correct answer from the options given below:

1. A
   A-(II), B-(I), C-(IV), D-(III)
2. B
   A-(I), B-(II), C-(III), D-(IV)
3. C
   A-(III), B-(IV), C-(I), D-(II)
4. D
   A-(I), B-(III), C-(II), D-(IV)