question_answer

   Four students have taken readings to verify Archimedes' principle. Which of the following students has taken the correct reading?

	Wt. of the object in air	Wt. lost by the object	Buoyant force	Wt. of the water displaced
Student 1	100 N	30 N	70 N	30 N
Student 2	100 N	30 N	30 N	70 N
Student 3	80 N	30 N	30 N	30 N
Student 4	80 N	30 N	50 N	50 N

Answer:

   Student 3. As weight lost by the object = buoyant force = weight of water displaced.