The inner diameter of a small test tube can be measured a...
The inner diameter of a small test tube can be measured accurately using a
Micrometres screw gauge
Pair of dividers
Metre rule
Pair of vernier calliper
Correct answer is D
A vernier scale is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation; thereby increasing resolution and reducing measurement
Which of the following apparatus will require the smallest fuse rating for its protection? ...
Which of these expresses the relationship between the earth’s magnetic field FE, and the field...
Four cells each of e.m.f 1.5V and internal resistance of 4Ω are connected in parallel. What is...
Which of the following is NOT a component of a slide projector? ...