question_answer 46)

  An object weighs 10 N in air. When immersed fully in water, it weighs only 8 N. The weight of the liquid displaced by the object will be (a) 2N                                    (b) 8N                                   (c) 10N                                  (d) 12N

Answer:

  (a) Given, Weight of an object in air =1 ON Weight of an object in water =8N So, the weight of the liquid displaced by the object F = 10 ? 8 = 2N and we know that according to Archimedes' Principle, buoyancy force = weight of the liquid displaced by the body.