Physics
Define one metre, the S.I. unit of length. State its one multiple and one sub multiple.
Related Questions
Name four basic measurements in our daily life.
What are the S.I. units of (i) mass (ii) length (iii) time and (iv) temperature ? Write their names and symbols.
The diagram below shows a stick placed along a metre ruler. The length of the stick is measured keeping the eye at positions A, B and C.

(a) Write the length of stick PQ as observed, for each position of the eye. Are they all same ?
(b) Which is the correct position of the eye? Write the correct length of the stick.
Define mass. State its (i) S.I. (ii) C.G.S and (iii) F.P.S units. How are they related?