The inner diameter of a test tube can be measured accurately using a:
A. micrometer screw guage
B. pair of dividers
C. metre rule
D. pair of vernier calipers
correct answer:
D. pair of vernier calipers
A sound wave is produced from a source and an echo is heard t seconds afterward. If d is the distance of the reflecting surface from the source…
January 26, 2019
Can I teach online?
still working on it. you can always check erudites.ng for the update