The unit of angular acceleration in the SI sy | vedclass

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Question

(C) Angular acceleration $(\alpha)$ is defined as the rate of change of angular velocity $(\omega)$ with respect to time $(t)$.Mathematically,$\alpha

Vedclass · Accepted Answer

$rad\,s^{-2}$

Vedclass · Answer

(C) Angular acceleration $(\alpha)$ is defined as the rate of change of angular velocity $(\omega)$ with respect to time $(t)$.Mathematically,$\alpha = \frac{d\omega}{dt}$.The $SI$ unit of angular velocity $(\omega)$ is radians per second $(rad\,s^{-1})$.Therefore,the $SI$ unit of angular acceleration is $\frac{rad\,s^{-1}}{s} = rad\,s^{-2}$.Thus,the correct option is $C$.

Column-$I$	Column-$II$
$(1)$ Distance between Earth and stars	$(a)$ Kilometer
$(2)$ Wavelength of infrared radiation	$(b)$ Light-year
	$(c)$ $\mathring{A}$

The unit of angular acceleration in the $SI$ system is

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Match the items in Column-$I$ with the appropriate units in Column-$II$.
Column-$I$ Column-$II$
$(1)$ Distance between Earth and stars $(a)$ Kilometer
$(2)$ Wavelength of infrared radiation $(b)$ Light-year
$(c)$ $\mathring{A}$

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