Which instrument is most suitable for measuring the length of a classroom?

Which compound prefix is not allowed in SI?

A ruler reading viewed from point A instead of directly above point B will most likely contain:

Which way of writing a force value follows SI rules?

Ten Vernier divisions occupy 9 mm. The length of one Vernier division is:

The result of (8 x 10^6)/(2 x 10^2) is:

If one main-scale division is 1 mm and one Vernier division is 0.9 mm, the least count is:

The result of (2 x 10^3)(4 x 10^2) is:

Which jaws of Vernier callipers measure the external diameter of a sphere?

0.00081 in scientific notation is:

A Vernier main-scale reading is 2.5 cm and the coinciding division is 7. If least count is 0.01 cm, the reading is: