Question

a student uses a spring balance of least count 10 gm and range 500 gm. he records the weight of small lead sphere in air,in tap water and in a concentrated solution of salt water respectively.if the reading are in order w1,w2,w3. write the relation between them with reason

Answer 1

Given:A student uses a spring balance of least count 10 gm and range 500 gm.
 He records the weight of small lead sphere in air as W1gms
In tap water as W2.
In concentrated salt solution W3
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Observations :
--->Greater than the density of fluid , greater will be upthrust produced by fluid.So in this case, Salt solution has greater density, so greater upthrust hence apparent weight [W3]  will be less than W1 and W2.
---> weight of object in air W1 will be more than W2 and w3
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So correct relation:

W1>W2>W3

Answer 2

Answer: W1 > W2 > W3

This is the correct answer