Q. If $L = 2.331\ cm,\ B = 2.1\ cm,$ then $L + B =$
A) $4.431\ cm$
B) $4.43\ cm$
C) $4.4\ cm$
D) $4\ cm$
Explanation
Given, $L = 2.331\ cm$ $= 2.33$ (correct upto two decimal places ) And $B = 2.1\ cm = 2.10\ cm$ $\therefore L + B = 2.33 + 2.10 = 4.43\ cm = 4.4\ cm$ Since minimum significant figure is 2
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.