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
The speed of light in a certain medium is V while its speed in a vacuum is C. The absolute refractive index of the medium is?
January 23, 2019
Can I teach online?
still working on it. you can always check erudites.ng for the update