Question

10.) In which of the following cases, the centre of mass of a rod may be at its centre?
(1) The linear mass density decreases continuously from left to right.
(2) The linear mass density increases continuously from left to right,
(3) The linear mass density decreases from left to right upto the centre and then increases.
(4) The linear mass density increases from left to right upto the centre and then decreases.
(A) 1, 2
(B) 3, 4
(C) 2, 4
(D) 1,4
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Answer 1

Answer:

option (A) is correct

Which is-(1) The linear mass density decreases continuously from left to right.

(2) The linear mass density increases continuously from left to right,

Answer 2

option A is a right answer