The correct value of ${0}^{o}C$ on the Kelvin scale is

(1) $273.15K$

(2) $272.85\text{\hspace{0.17em}}K$

(3) $273\text{\hspace{0.17em}}K$

(4) $273.2\text{\hspace{0.17em}}K$

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'Torr' is the unit of

(1) Pressure

(2) Volume

(3) Density

(4) Flux

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Dimensions

Difficulty Level:

Which of the following is a derived unit

(1) Unit of mass

(2) Unit of length

(3) Unit of time

(4) Unit of volume

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Dimensions

Difficulty Level:

Dyne/cm2 is not a unit of :

(1) Pressure

(2) Stress

(3) Strain

(4) Young's modulusDyne is the unit of force and cm

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Dimensions

Difficulty Level:

The units of angular momentum are

(1) $kg\text{​}-\text{​}{m}^{2}\text{​}/\text{​}{s}^{2}$

(2) $Joule\text{​}-\text{​}s$

(3) $Joule\text{​}/\text{​}s$

(4) $kg\text{​}-\text{​}m\text{​}-\text{​}{s}^{2}$

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Which of the following is not the unit of energy

(1) Calorie

(2) Joule

(3) Electron volt

(4) Watt

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Which of the following is not a unit of time

(1) Leap year

(2) Micro second

(3) Lunar month

(4) Light year

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The S.I. unit of gravitational potential is

(1) J

(2) $J\text{​-​}k{g}^{-1}$

(3) $J\text{​-​}kg$

(4) $J\text{​-​}k{g}^{-2}$

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Which one of the following is not a unit of young's modulus

(1) $N{m}^{-1}$

(2) $N{m}^{-2}$

(3) $Dyne\text{\hspace{0.17em}}c{m}^{-2}$

(4) Mega Pascal

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In C.G.S. system the magnitutde of the force is 100 dynes. In another system where the fundamental physical quantities are kilogram, metre and minute, the magnitude of the force is

(1) 0.036

(2) 0.36

(3) 3.6

(4) 36

Concept Questions :-

Dimensions