The unit of potential energy is - Vidyadip

MCQ

The unit of potential energy is

A
$g\left( cm / sec ^2\right)$
✓
$g ( cm / sec )^2$
C
$g\left( cm ^2 / sec \right)$
D
$g( cm / sec )$

✓

Answer

Correct option: B.

$g ( cm / sec )^2$

(b) Potential energy $=m g h=g\left(\frac{\mathrm{cm}}{\mathrm{sec}^2}\right) \mathrm{cm=g\left(\frac{\mathrm{cm}}{\mathrm{sec}}\right)^2$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Units, Dimensions and Measurement→Units, Dimensions and Measurement — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The dispersive powers of glasses of lenses used in an achromatic pair are in the ratio $5: 3$. If the focal length of the concave lens is $15\ \mathrm{cm}$, then the nature and focal length of the other lens would be

A particle of mass $M$ is moving in a horizontal circle of radius $R$ with uniform speed $V$. When it moves from one point to a diametrically opposite point, its

If the wavelength of light in vacuum be $\lambda$, the wavelength in a medium of refractive index $n$ will be

A physical quantity is given by $X=M^a L^b T^c$. The percentage error in measurement of $M, L$ and $T$ are $\alpha, \beta$ and $\gamma$ respectively. Then maximum percentage error in the quantity $X$ is

A concave lens and a convex lens have same focal length of $20 \mathrm{~cm}$ and both put in contact this combination is used to view an object 5 $\mathrm{cm}$ long kept at $20 \mathrm{~cm}$ from the lens combination. As compared to object the image will be

A bullet is fired from a rifle. If the rifle recoils freely, then the kinetic energy of the rifle is

Indicate which one of the following system is digital

The internal resistance of a primary cell is $4 ohm$. It generates a current of $0.2 amp$ in an external resistance of $21 ohm$. The rate at which chemical energy is consumed in providing the current is

To an observer on the earth the stars appear to twinkle. This can be ascribed to

If the momentum of a photon is $p$, then its frequency is Where $m$ is the rest mass of the photon