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MBD PUBLICATION-PHYSICAL WORLD AND MEASUREMENT-QUESTION BANK
- A standard meter is taken to be a bar of alloy.
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- Relativistic mass is given bymo/sqrt(1-upsilon^2/-
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- A mean solar second is defined to be 1//(84,400) of mean day i.e durat...
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- 1 gm is defined as mass of at 3.98^@Cunder atmospheric pressure.
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- SI international system from 1960 is known from.
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- The speed of light in Vacuum is.
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- The mass of proton is and of neutron is.
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- The mean radius of earth is 6,371 km and mass is.
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- The mean radius of sun is and mass is.
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- The mean radius of moon is and mass is.
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- The unit of oscillation frequency is.
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- The unit of density is.
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- 1 Picofarad is farad.
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- 1 overset@A is cm.
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- 1 ev, unit of electric energy is equal to.
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- The unit of charge in esu is and emu is.
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- The unit of resistance in esu isand emu is.
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- The unit of magnetic flux (mx) in emu is 1 max =web.
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- The unit of Gauss in emu is.
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- Plank's constant has the dimensions.
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