Q. The initial temperature of a liquid is $(80.0 \pm 0.1)^{0}$C. After it has been cooled, its temperature is $(10.0 \pm 0.1)^{0}$C. The fall in temperature in degree centigrade is
A) 70.0
B) 70.0$\pm \ 0.3$
C) $70.0 \pm 0.2$
D) $70.0 \pm 0.1$
Explanation
When quantities are subtracted, their maximum absolute errors are added up.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.