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

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The unit of L/R is (where L = inductance and R = resistance)

(1) sec

(2) sec–1

(3) Volt

(4) Ampere

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Which is different from others by units?

(1) Phase difference

(2) Mechanical equivalent

(3) Loudness of sound

(4) Poisson's ratio

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Length cannot be measured by

(1) Fermi

(2) Debye

(3) Micron

(4) Light year

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The value of Planck's constant is

(1) $6.63×{10}^{-34}J\text{​-​}\mathrm{sec}$

(2) $6.63×{10}^{34}J\text{​}/\text{​}\mathrm{sec}$

(3) $6.63×{10}^{-34}kg\text{​-​}{m}^{2}$

(4) $6.63×{10}^{34}kg\text{​}/\text{​}\mathrm{sec}$

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A physical quantity is measured and its value is found to be nu where n = numerical value and u = unit. Then which of the following relations is true

(1) $n\propto {u}^{2}$

(2) $n\propto u$

(3) $n\propto \sqrt{u}$

(4) $n\propto \frac{1}{u}$

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(1) Charge

(2) emf

(3) Mass

(4) Energy

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