Question

When a lactometer is used in a given sample of milk 'A' it floats in the milk such that half of the length of its stem is immersed in the milk. When it is used in another sample of milk 'B', the length of the stem immersed in the milk is one fourth of the total length. Then which of the following statement(s) is(are) true?
(A) Water content in A is more than that in B.
(B) Density of the sample A is less than the density of the sample B.

• A. A is true, but B is false
• B. A and B are false
• C. A and B are true
• D. A is false but B is true

Answer 1

The correct option is C A and B are true

As lactometer sinks less in case of B , we can easily say that the density of sample B is more than that of sample A , hence water content in A would be more as milk is denser than water .

so both statements (A) and (B) are correct .

so option (C) is correct