Units for Quantities of Various Magnitude

Author:Subrata Kumar Choudhury & Jibananda Paul
9th West Bengal Board
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Important Questions on Units for Quantities of Various Magnitude

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PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Measurement>Units for Quantities of Various Magnitude> Q 1

What is a unit less quantity? Give an example.

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PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Measurement>Units for Quantities of Various Magnitude> Q 2

What are the units of area and volume in CGS and SI system.

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PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Measurement>Units for Quantities of Various Magnitude> Q 3

What is the quantity whose unit is kg m-3?

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PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Measurement>Units for Quantities of Various Magnitude> Q 4

_____ is the largest unit of measurement of length.

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PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Measurement>Units for Quantities of Various Magnitude> Q 5

The SI unit of density is

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PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Measurement>Units for Quantities of Various Magnitude> Q 6

The unit used to express the wavelength of light is :

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PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Measurement>Units for Quantities of Various Magnitude> Q 7

Chandrasekhar limit is a unit of :