Questions  

Consider the following statements.
(A) A needle placed on the surface of the liquid may float whereas a ball of same material will always sink.
(B) Upthurst (or buoyancy) does not depend on material of object. 

Select the correct option.
(a) (A) is false, But (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true, But (B) is false.
(d) Both (A) and (B) are false.

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By Expert Faculty of Sri Chaitanya
a
Both (A) and (B) are true.
b
(A) is true but (B) is false.
c
(A) is false but (B) is true.
d
Both (A) and (B) are false.
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detailed solution

Correct option is B

A is true.buoyancy = vinρ liquid g

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Similar Questions

Consider the following statements.
(A) A thin stainless steel needle can lay floating on a still water surface. 
(B) Any object floats when the buoyancy force balances the weight of the object. 

Select the correct option.
(a) (A) is false, But (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true, But (B) is false.
(d) Both (A) and (B) are false.

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