Find the number of significant digits in measurement of `0.00100010`

What are significant numbers? Write the number of significant digits in the measurement of 0.002308.

The unit of measurement is mm. If the measure is 4.2 cm, then find the number of significant figures in he measurement.

Find the number of significant figures in 0.005.

The unit of measurement is litre. If the measure is 4.000 kilolitres, then find the number of significant figures in the measurement.

The unit of measurement is cm. If the measure is 5.00 metres, then find the number of significant figures in the measurement.

The number of significant digits in 0.001001 is :-

Number of significant digit in 0.0060 are …...

The number of significant digits in 0.001001 is :-

The number of significant digits in 0.001001 is :-

State the number of significant figures in the following measurements : 0.009m^2