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If the magnitude of length is halved and that of mass is doubled then dimension of force is

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If the magnitude of length is halved and that of mass is doubled then dimension of force is

(A) [M2L-2 T-2] 

(B) [M2L-1/2T-2] 

(C) [M2L1/2T-2] 

(D) [M1L1 T-2]

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Answer is (D) [M1L1 T-2]

The dimension of a quantity is independent of changes in its magnitude.

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