Question

2. Fill in the blanks.
(a) The standard unit of mass is
(b) We use a metre rod to measure​

Answer 1

Answer:

kilogram

Explanation:

mass is kilogram

length is meter

time is Kelvin

Answer 2

Answer:

(a) Kilogram

(b) It is used to measure various length.

Explanation:

(a) The standard international unit of mass is kilogram.

1kg = 1000 gm . It is 1st defined in 1975 as one cubic decimeter of water at the melting point of ice.

(b) Metre rod is used to measure length of cloth, height of a place and a small distance like length and breadth of of a field, depth of a wall etc. The main standard unit of length is metre.