B M Sharma Solutions for Chapter: Dimensions and Measurement, Exercise 5: CONCEPT APPLICATION EXERCISE 1.1

Radian is the unit of plane angle and it is a supplementary unit.

(a) The unit of work and energy are ...............
(b) The unit of power is ...............
(c) The unit of energy per unit volume is ..........

Fill in the blanks
(a) The volume of a cube of side $1 \mathrm{cm}$ is equal to _____ $m^3$.
(b) The surface area of a solid cylinder of radius $2 \mathrm{cm}$ and height $10 \mathrm{cm}$ is equal to _____${\mathrm{mm}}^2$
(c) A vehicle moving with a speed of $18 \mathrm{km} {\mathrm{h}}^{-1}$covers _____  $\mathrm{m}$in $1 \mathrm{s}$
(d) The relative density of lead is $11.3$. Its density is  _____ $\mathrm{kg} {\mathrm{m}}^{-3}$
.

Fill in the blanks by suitable conversion of units $1 \mathrm{kg} {\mathrm{m}}^2 {\mathrm{s}}^{-2}=$${10}^{\mathrm{n}}$ $\mathrm{g} {\mathrm{cm}}^2 {\mathrm{s}}^{-2}$ . Then the value of $\mathrm{n}$ is _____: