R P Rana Solutions for Chapter: Measurement, Exercise 2: Check Point

Name the SI unit of length. (Kilometre/Metre)

Name the unit of length which you would like to use while expressing the distance between Delhi and Mumbai. (Centimetre/Kilometre)

Name the unit of length, which should be used to express the thickness of coin.(Kilometre/Millimetre)

Express: $3.5 \mathrm{km}$ into $\mathrm{m}$.

Express: $2500 \mathrm{m}$ into $\mathrm{km}$.

State the precautions which should be taken while using a meter scale to measure length.

A  $30 \mathrm{cm}$ scale has one end broken. The mark at the broken end is $2.6 \mathrm{cm}$. How would you use it to measure the length of your pencil?

State two precautions which should be taken while using a metre scale to measure the length of an object.