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

Velocity v and acceleration a in two systems of units 1 and 2 are related as v 2 = n m 2 v 1 and a 2 = a 1 m n respectively. Here m and n are constants. The relations for distance and time in two systems respectively are

n 3 m 3 L 1 = L 2 and n 2 m T 1 = T 2

L 1 = n 4 m 2 L 2 and T 1 = n 2 m T 2

L 1 = n 2 m L 2 and T 1 = n 4 m 2 T 2

n 2 m L 1 = L 2 and n 4 m 2 T 1 = T 2

EASY

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$1$ m is equal to.

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Important Questions on Measurements

MEDIUM

Science>Physics>Measurements>Unit of Measurement

1 Pound = ________ Ounces.

EASY

Science>Physics>Measurements>Unit of Measurement

Plane angle and solid angle have:

MEDIUM

Science>Physics>Measurements>Unit of Measurement

For a family, there are 150 units consumption of energy, what is the value of this consumption in Joule?

HARD

Science>Physics>Measurements>Unit of Measurement

A certain liquid has a melting point of

- 50 ° C

and a boiling point of

150 ° C

. A thermometer is designed with this liquid and its melting and boiling points are designated at

0 ° L

and

100 ° L

. The melting and boiling points of water on this scale are

EASY

Science>Physics>Measurements>Unit of Measurement

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

EASY

Science>Physics>Measurements>Unit of Measurement

The units nanometer and picometer are related as,

HARD

Science>Physics>Measurements>Unit of Measurement

0.27 g

of a long chain fatty acid was dissolved in

100 {c m}^{3}

of hexane.

10 m L

of this solution was added dropwise to the surface of water in a round watch glass. Hexane evaporates and a monolayer is formed. The distance from edge to centre of the watch glass is

10 c m

. What is the height of the monolayer?
[Density of fatty acid

= 0.9 g c m^{- 3}; π = 3]

MEDIUM

Science>Physics>Measurements>Unit of Measurement

Let a resistor having 4 ohm resistance be connected across the terminals of a 12 volt battery. Then, the charge in coulomb passing through the resistor per second is

EASY

Science>Physics>Measurements>Unit of Measurement

The angular speed of a fly-wheel making

180 rpm

is ________

EASY

Science>Physics>Measurements>Unit of Measurement

Light year is a unit of

EASY

Science>Physics>Measurements>Unit of Measurement

The nearest star to our solar system is

4.3

light years away. The distance of this star in Parsec is (Mean distance between the earth and the sun

= 1.5 \times 10^{11} m

and one light year

= 9.46 \times 10^{15} m)

EASY

Science>Physics>Measurements>Unit of Measurement

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

EASY

Science>Physics>Measurements>Unit of Measurement

The temperature of an object is $60 ° C .$ Its value in Fahrenheit scale is

MEDIUM

Science>Physics>Measurements>Unit of Measurement

The angular diameter of a planet measured from earth is

90 " .

If the diameter of the planet is

π \times 10^{6} m,

then its distance from the earth is

EASY

Science>Physics>Measurements>Unit of Measurement

Convert $- 40 ° F$ into Celsius.

EASY

Science>Physics>Measurements>Unit of Measurement

Match List I with List II

	List I		List II
A	Torque	I	$kg m^{- 1} s^{- 2}$
B	Energy density	II	$kg m s^{- 1}$
C	Pressure gradient	III	$kg m^{- 2} s^{- 2}$
D	Impulse	IV	$kg m^{2} s^{- 2}$

Choose the correct answer from the options given below :

MEDIUM

Science>Physics>Measurements>Unit of Measurement

Velocity

(v)

and acceleration

(a)

in two systems of units

1

and

2

are related as

v_{2} = \frac{n}{m^{2}} v_{1}

and

a_{2} = \frac{a_{1}}{m n}

respectively. Here

m

and

n

are constants. The relations for distance and time in two systems respectively are

EASY

Science>Physics>Measurements>Unit of Measurement

The distance of the Sun from earth is

1.5 \times 10^{11} m

and its angular diameter is

2000''

when observed from the earth. The diameter of the Sun will be

EASY

Science>Physics>Measurements>Unit of Measurement

The prefix atto means

EASY

Science>Physics>Measurements>Unit of Measurement

The angle of

1'

(minute of arc) in radian is nearly equal to

1 m is equal to.

Important Questions on Measurements

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$1$ m is equal to.