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JEE PHYSICS MCQ: UNITS & MEASUREMENTS
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The surface tension of mercury is 32 dyne . Its value in SI units is
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Correct option: A
0.032
Option A (0.032) is correct because the surface tension in SI units is obtained by converting dyne/cm to N/m, resulting in 0.032 N/m.
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Reason: Acceleration has the dimensions of The method of dimensional analysis can be used to derive which of the following relations? Statement-I: Dimensions of constant of proportionality of constants can be derived from dimensional method
Statement-II: Numerical value of constant of proportionality can be found from experiments only The dimensions of torque are The physical quantity having the dimensions is A quantity X is given by , where is the permittivity of free space, L is a length, is a potential difference and is a time interval. The dimensional formula for X is the same as that of
