A solid object of volume `250 cm^3` is immersed completely in water. Calculate the buoyant form.

A solid body of volume 60 cm^3 is immersed completely in water. Calculate the buoyant force.

A slid object of mass 5 kg floats in a liquid. Calculate the buoyant force acting on the body.

A wire loaded by a weight of density 7.6 g cm^-3 is found to be of length 90 cm. On immersing the weight in water, the length decreased by 0.18 cm. Find the original length of the wire.

A cylindrical bucket, 14 cm in radius, is filled with water to some height. If a rectangular solid of size 28cm xx 11 cm xx 10 cm is immersed in the water, find the height by which water rises in the bucket.

A cylindrical bucket,28 cm in radius is filled with water to 15 cm in height.If a rectangular solid of size 70 cm xx 56 cm xx 66 cm is immersed in the water, find the height by which water rises in the bucket.

The image formed by the lens is erect and its length is three times the length of an object. If the focal length of the lens is 15 cm, what kind of lens it is ? Calculate the object and image distance.

The concentration of bivalent lead ions in sample of polluted water that also contains nitrate ions is determined by adding solid sodium sulphate (m=142) to exacty 500mL water 500mL water. Calculate the molarity of kead ion if 0.355g of solium sulphate was needed for complete precipitation of lead ions as sulphate.