The area of a rectangular field (in m²) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is

The S I unit of momentum is

The weight of a body is 20 kg. This weight is equal to.

What is the commercial unit of electric energy?

The speed of sound is fastest in -

Time intervals measured by a clock give the following readings:
1.25s,1.24s,1.27s,1.21s and 1.28s
What is the percentage relative error of the observations?

The angle of 1' (minute of arc) in radian is nearly equal to

The quantities which have the same dimensions as those of solid angle are.

A metal wire has mass (0.4±0.002) g, radius (0.3±0.001)mm and length (5±0.02)cm. The maximum possible percentage error in the measurement of density will nearly be:

Plane angle and solid angle have

If force [F], acceleration [A] and time [T] are chosen as the fundamental physical quantities. Find the dimensions of energy.