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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Application +4 | -1

If

F = 6\mathrm{\pi }{\mathrm{\eta }^\mathrm{a}}{r^b}{v^c}

Where F=viscous force

\mathrm{\eta }

= coefficient of viscosity
r= radius of spherical body
v= terminal velocity of the body.
Find the values of a,b and c.

View answer and explanation

Correct option: B

a = 1,b = 1,c = 1

Option B (a = 1, b = 1, c = 1) is correct because dimensional analysis of the viscous force equation yields these values for the exponents.

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