A light gate should be set up so that:

  1. it faces the ceiling
  2. the beam is blocked permanently
  3. it is far from the object's path
  4. the object passes through the beam cleanly
Answer

D) the object passes through the beam cleanly

Correct timing. SLO P-11-N-06 · Application

Physics MCQ · More Experimental Skills and Data Analysis MCQs · Practise