Match the physical quantities with their correct SI units. List-I List-II (A) Planck's constant (I) kg m s - 2 (B) Torque (II) kg - 1 m 3 (C) Weight (III) m 2 kg s - 1 (D) Specific volume (IV) kg m 2 s - 2 The correct match is

A = III , B = IV , C = I , D = II

A = II , B = IV , C = I , D = III

A = IV , B = I , C = II , D = III

A = II , B = III , C = I , D = IV

The standard of physical quantity in terms of which a quantity is measured is called unit. Note: Any quantity can be measured in terms of units. Some fundamental quantities with their respective units are length- metre , time- second , etc.

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What is the difference between MKS system and MKSA system?

Important Questions on Measurement

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The units nanometer and picometer are related as,

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Order of magnitude of a physical quantity is the

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Science>Physics>Measurement>Measurement System

Light year is a unit of

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Science>Physics>Measurement>Measurement System

Match the physical quantities with their correct $SI$ units.

	List-I		List-II
(A)	Planck's constant	(I)	$kg m s^{- 2}$
(B)	Torque	(II)	${kg}^{- 1} m^{3}$
(C)	Weight	(III)	$m^{2} kg s^{- 1}$
(D)	Specific volume	(IV)	$kg m^{2} s^{- 2}$

The correct match is

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If $E$ and $H$ represents the intensity of electric field and magnetizing field respectively, then the unit of $\frac{E}{H}$ will be:

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“Parsec” is the unit of :

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Science>Physics>Measurement>Measurement System

Why do we need standard units of measurement?

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Science>Physics>Measurement>Measurement System

Dimensional formula for the universal gravitational constant

G

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The physical quantity which is not a unit of energy is:

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Science>Physics>Measurement>Measurement System

What is the metric system of units?

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Science>Physics>Measurement>Measurement System

A clock tells us time.

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Science>Physics>Measurement>Measurement System

What is a unit?

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Science>Physics>Measurement>Measurement System

A new unit of length is chosen such that the speed of light in vacuum is unity. What is the distance between the sun and the earth in terms of this new unit, if light takes

8 \min

and

20 \sec

to cover this distance?

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What is the SI system of units? Name two other systems of units.

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Science>Physics>Measurement>Measurement System

Ampere-hour is the unit of

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Science>Physics>Measurement>Measurement System

The surface tension of mercury is 32 dyne

c m^{- 1}

. Its value in SI is

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Science>Physics>Measurement>Measurement System

A decimal system of units _____. (Choose from British system, metric system, SI system)

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Science>Physics>Measurement>Measurement System

Which of the following cannot be regarded as an essential characteristic of a unit of measurement?

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Science>Physics>Measurement>Measurement System

It is estimated that per minute each cm² of earth receives about 2 calorie of heat energy from the sun. This constant is called solar constant S. Express solar constant in SI units.

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Science>Physics>Measurement>Measurement System

The SI and CGS units of energy are joule and erg respectively. Erg and joule are related through

What is the difference between MKS system and MKSA system?

Important Questions on Measurement

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