Question

a piece of wood of mass 150g has a volume of 200cm3 .find the density of wood in (a)CGS system (b) S.I. SYSTEM.

Answer 1

explanation.:mass of  wood is 150g

volume of wood is 200cm cube

density =mass÷volume

d=m÷v

d=150g÷200cmcube

=0.75 gcmcube

density of wood in C.G.S unit =0.75gcmcube

Answer 2

(a) Mass of wood (M)=150g

Volume of wood (V)=200$cm^{3}$

Therefore,

Density (D)= $\frac{M}{V}$=$\frac{150}{200}$= 0.75$gcm^{-3}$

(b) In S.I. system =0.75×1000=750 $kgm^{-3}$