solution

Asked by rohitkasbe11 | 20th Mar, 2020, 12:11: AM

Expert Answer:

Q.1. - A block weighs 165 g in air  and 130 g in water. Calculate the volume and specific gravity.
 
Solution  - 
Let the volume of block be V
 
By Archimede's principle, 
 
mass of object in air  - apparent mass when submergerd in water = density of water x volume of object 
 
165 g - 130 g = 1 x V 
V = 35 g 
 
Specific gravity also known as relative density = density of object/density of water = mass of object in air/Volume of object/density of water
Thus, 
Specific gravity = 165/35/1 = 4.7 
 

Answered by Shiwani Sawant | 20th Mar, 2020, 01:03: PM