1. Tardigrade
  2. Question
  3. Physics
  4. Four students measure the height of a tower. Each student uses a different method and each measures the height many different times. The data for each are plotted below. The measurement with highest precision is <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/69d462fc3ea3c89cb98380ddcad1ac4c-.jpeg />

Q. Four students measure the height of a tower. Each student uses a different method and each measures the height many different times. The data for each are plotted below. The measurement with highest precision is
image

 2587  211 KVPYKVPY 2011Physical World, Units and Measurements Report Error

Solution:

Precision refers to the limit of resolution. Precision is determined by the least count of measuring instrument.
A smaller least count means greater precision.
So, more precise readings have least spread of readings as in case I.