Question

12. The mass of a lead piece is 115 g. When it is
immersed into a measuring cylinder, the water
level rises from 20 mL mark to 30 mL mark.
Find :
(i) the volume of the lead piece,
(ii) the density of the lead in kg m-3.​

Answer 1

Answer:

Given : Value

To Find : Density

Solution :

Mass = 115 gram

V 1 = 20 ml

V2 = 30 ml

Volume Of Lead Piece

V = V 1 - V 2

30 ml - 20 ml = 10 ml

10ml = 10 cm^3 ( Kyuki 1ml = 1 cm^2 )

Density Of lead piece U now that formula

mass / Volume

115 / 10

= 11.5 g / cm ^3

Since 1 gm / cm ^3 = 100 kg / m ^3

= 11.5 × 1000

= 11500 kg /m^3

The Answer Is 11500kg/m^3