A small bottle weight 20 g when empty and 22 g when filled with water. When it is filled with oil it weight `21.76g.` What is the density of oil ? `(AS_(1))`

The density of water is 1 g cm^(-3) . What is its density in S.I. units?

A body floats in water with 40% of its volume outside water. When the same body floats in oil 60% of its volume remains outside oil. What is the relative density of the oil ?

The diameter of a lead ball is 2.1 cm The density of the lead used is 11.34 g//c^(3) What is the weight of the ball ?

A beaker is placed on the top of a coin. The top of the beaker is closed with an opaque body with a small hole. View the coin from an angle , slowly add water through the hole while continuing to view the coin from the same angle. Repeat the procedure using cooking oil. a. What happens when water is continuously added ? b. What about the heights of water and oil, when con completely disappears ? c. In which liquid, the coin is concealed best with minimum height? Why? d. What is the valation between opitieal angle and refrective index. ?

A cylinder of height 20 m is completely filled with water. The velocity of efflux of water (in ms^(-1) ) through a small hole on the side of the cylinder near its bottom is: [g=10m//s^(2)]

A piece of solid weight 120 g in air, 80g in water & 60g in liquid find the relative density of solid & liquid.

A force of 10 kg weight acting on an object of mass for 2 s gives to it a velocity of 10 ms^(-1) . What is the mass of an object in kg ? [ g=9.8ms^(-1) ]