Back to UNITS & MEASUREMENTS

NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

1 Medium

1 of 1

Application +4 | -1

What is the unit of k in the relation

U = \frac{{ky}}{{{y^2} + {a^2}}}

where U represents the potential energy, y represents the displacement and a represents the maximum displacement ie, amplitude?

View answer and explanation

Correct option: C

J m

Option C (J m) is correct because from the relation

U = \frac{{ky}}{{{y^2} + {a^2}}}

, k must have the dimensions of energy times length, which corresponds to J m.

More Questions from UNITS & MEASUREMENTS

Practice All Chapter MCQs →

Statement-I: Random errors can be positive or negative.
Statement-II: Cause of random errors are uncertain. An object is moving through the liquid. The viscous damping force acting on it is proportional to the velocity. Then dimension of constant of proportionality is The error due to parallax is a: 2.34 is obtained by rounding of the number The dimensional formula of self-inductance is The dimension of

\frac{1}{{\sqrt {{\varepsilon _0}{\mu _0}} }}