A suitable unit for gravitational constant is

(1) $kg\text{-\hspace{0.17em}}m{\mathrm{sec}}^{-1}$

(2) $N\text{\hspace{0.17em}}{m}^{-1}\mathrm{sec}$

(3) $N\text{\hspace{0.17em}\hspace{0.17em}}{m}^{2}\text{\hspace{0.17em}}k{g}^{-2}$

(4) $kg\text{\hspace{0.17em}}m\text{\hspace{0.17em}}{\mathrm{sec}}^{-1}$

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SI unit of pressure is

(1) Pascal

(2) $Dynes/c{m}^{2}$

(3) cm of Hg

(4) Atmosphere

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The unit of angular acceleration in the SI system is

(1) $N\text{\hspace{0.17em}}k{g}^{-1}$

(2) $m\text{\hspace{0.17em}}{s}^{-2}$

(3) $rad\text{\hspace{0.17em}}{s}^{-2}$

(4) $m\text{\hspace{0.17em}}k{g}^{-1}K$

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The unit of Stefan's constant $\sigma$ is :                                                  [Only for Droppers]

(1) $W\text{\hspace{0.17em}}{m}^{-2}\text{\hspace{0.17em}}{K}^{-1}$

(2) $W\text{\hspace{0.17em}}{m}^{2}\text{\hspace{0.17em}}{K}^{-4}$

(3) $W\text{\hspace{0.17em}}{m}^{-2}\text{\hspace{0.17em}}{K}^{-4}$

(4) $W\text{\hspace{0.17em}}{m}^{-2}\text{\hspace{0.17em}}{K}^{4}$

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Which of the following is not a unit of energy

(1) $W\text{​-s}$

(2) $kg\text{-}m/\text{​}\mathrm{sec}$

(3) $N\text{​-}m$

(4) Joule

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In $S=a+bt+c{t}^{2}$. S is measured in metres and t in seconds. The unit of c is

(1) None

(2) m

(3) $m{s}^{-1}$

(4) $m{s}^{-2}$

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Joule-second is the unit of :

(1) Work

(2) Momentum

(3) Pressure

(4) Angular momentum

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Unit of energy in SI system is

(1) Erg

(2) Calorie

(3) Joule

(4) Electron volt

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A cube has a numerically equal volume and surface area. The volume of such a cube is :

(1) 216 units

(2) 1000 units

(3) 2000 units

(4) 3000 units

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Wavelength of ray of light is $0.00006\text{\hspace{0.17em}}m$. It is equal to

(1) $6\text{\hspace{0.17em}\hspace{0.17em}}microns$

(2) $60\text{\hspace{0.17em}\hspace{0.17em}}microns$

(3) $600\text{\hspace{0.17em}\hspace{0.17em}}microns$

(4) $0.6\text{\hspace{0.17em}\hspace{0.17em}}microns$

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