If the unit of length and force be increased four times, then the unit of energy is

(1) Increased 4 times

(2) Increased 8 times

(3) Increased 16 times

(4) Decreased 16 times

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Oersted is a unit of :

(1) Dip

(2) Magnetic intensity

(3) Magnetic moment

(4) Pole strength

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$Ampere-hour$ is a unit of

(1) Quantity of electricity

(2) Strength of electric current

(3) Power

(4) Energy

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The unit of specific resistance is

(1) $Ohm\text{​}/\text{​}c{m}^{2}$

(2) $Ohm\text{​}/\text{​}cm$

(3) $Ohm\text{​}-\text{​}cm$

(4) ${\left(Ohm\text{​}-\text{​}cm\right)}^{-1}$

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The binding energy of a nucleon in a nucleus is of the order of a few

(1) eV

(2) Ergs

(3) MeV

(4) Volts

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$\mathrm{Par}-\mathrm{sec}$ is a unit of :

(1) Distance

(2) Velocity

(3) Time

(4) Angle

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If u1 and u2 are the units selected in two systems of measurement and n1 and n2 their numerical values, then

(1) ${n}_{1}{u}_{1}={n}_{2}{u}_{2}$

(2) ${n}_{1}{u}_{1}+{n}_{2}{u}_{2}=0$

(3) ${n}_{1}{n}_{2}={u}_{1}{u}_{2}$

(4) $\left({n}_{1}+{u}_{1}\right)=\left({n}_{2}+{u}_{2}\right)$

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eV is

(1) Same as one joule

(2) $1.6×{10}^{-19}J$

(3) 1 V

(4) $1.6×{10}^{-19}C$

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$1kWh=$

(1) $1000W$

(2) $36×{10}^{5}J$

(3) $1000J$

(4) $3600\text{\hspace{0.17em}}J$

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Universal time is based on :

(1) Rotation of the earth on its axis

(2) Earth's orbital motion around the Sun

(3) Vibrations of cesium atom

(4) Oscillations of quartz crystal

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