Match the following:

List-I

List-II

(a)

Distance between earth and stars

1.

Microns

(b)

Inter-atomic distance in a solid

2.

Angstroms

(c)

Size of the nucleus

3.

Light years

(d)

Wavelength of infrared laser

4.

Fermi

 

 

5.

Kilometres

Codes:

 

a

b

c

d

(1)

5

4

2

1

(2)

3

2

4

1

(3)

5

2

4

3

(4)

3

4

1

2

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Unit of impulse is

(1) Newton

(2) kgm

(3) kgm/s

(4) Joule

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Which is not a unit of electric field

(1) NC1

(2) Vm1

(3) JC1

(4) JC1m1

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The correct value of 0oC on the Kelvin scale is

(1) 273.15K

(2) 272.85K

(3) 273K

(4) 273.2K

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'Torr' is the unit of

(1) Pressure

(2) Volume

(3) Density

(4) Flux

Concept Questions :-

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Which of the following is a derived unit

(1) Unit of mass

(2) Unit of length

(3) Unit of time

(4) Unit of volume

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Dyne/cm2 is not a unit of :

(1) Pressure

(2) Stress

(3) Strain

(4) Young's modulusDyne is the unit of force and cm

Concept Questions :-

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The units of angular momentum are

(1) kgm2/s2

(2) Joules

(3) Joule/s

(4) kgms2

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Which of the following is not the unit of energy

(1) Calorie

(2) Joule

(3) Electron volt

(4) Watt

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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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Difficulty Level: