This video explains answer to the following questions
Q1) Which one of the following is not a derived physical quantity?
(a) Speed (b) Volume (c) Mass (d) Force
Q2) Kg ms^-2 is not the unit of
(a) Weight (b) Tension (c) Centrifugal force (d) Work
Q3) Which one of the following represents unit of Density
(a) Kg m^-3 (b) Kg ms^-3 (c) Km m^-3 (d) Hr m^-3
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