units and measurements class 11 questions answers
Chapter 1: units and measurements class 11 questions answers Chapter 1: units and measurements class 11 questions answers 1. Multiple Choice Questions i) [L 1 M 1 T -2 ] is the dimensional formula for: (A) Velocity (B) Acceleration (C) Force (D) Work ii) The error in the measurement of the sides of a rectangle is 1%. The error in the measurement of its area is: (A) 1% (B) ( )% (C) 2% (D) None of the above iii) Light year is a unit of: (A) Time (B) Mass (C) Distance (D) Luminosity iv) Dimensions of kinetic energy are the same as that of: (A) Force (B) Acceleration (C) Work (D) Pressure v) Which of the following is not a fundamental unit? (A) cm