Question

a body weight 300gf in air and 200 gf in water when completely immersed calculate 1)relative density
2)density of the body in C. G. S unit​

Answer 1

Answer:

Explanation:

Weight of the body in air =500gf

Weight of the body in water =450gf

∴ (i) loss of weight of the body when immersed in water =500gf−450gf=50gf.

(ii) upthrust of the body=loss in weight of the body =50gf.

(iii) upthrust =Vdg

⇒50gf×g=V×1gcm  

−3

×g(densityofwater=1gcm  

−3

)

⇒volumeofthebodyV=50cm  

3