Saved Bookmarks
| 1. |
Find the number of plates. 1.5 cm in diameterand 0.2 cm thick, that can be fitted completelyinside a right circular cylinder of height 10 cmand diameter 4.5 cm.[Board Term-2, 2014] |
|
Answer» Vol. of cylinder = πr^2h= 22/7*(4.5/2)^2*10= 22/7*5.0625*10= 159.107143 cm^3vol.of plate = π*r^2*h= 22/7*(1.5/2)^2*0.2= 22/7*0.5625*0.2=0.35357143 cm^3No.of plates = vol.of cylinder/vol.of plates= 159.107143/0.35357143= 450 plates. nhi samajh mai aaya |
|