Which of the following is smallest unit

(1) Millimetre

(2) Angstrom

(3) Fermi

(4) Metre

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Which one of the following pairs of quantities and their units is a proper match

(1) Electric field – Coulomb/m

(2) Magnetic flux – Weber

(3) Power – Farad

(4) Capacitance – Henry

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The units of modulus of rigidity are

(1) Nm

(2) N/m

(3) Nm2

(4) N/m2

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The unit of absolute permittivity is

(1) Fm (Farad-metre)

(2) Fm1 (Farad/metre)

(3) Fm2 (Farad/metre2)

(4) F (Farad)

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List-I

I. Joule

II. Watt

III. Volt

IV. Coulomb

 

 

List-II

A. Henry × Amp/sec

B. Farad × Volt

C. Coulomb × Volt

D. Oersted × cm

E. Amp × Gauss

F. Amp2 × Ohm

 Codes:                                                                                        [Only for droppers]

(1) IA,IIF,IIIE,IVD

(2) IC,IIF,IIIA,IVB

(3) IC,IIF,IIIA,IVE

(4) IB,IIF,IIIA,IVC

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Which relation is wrong

(1) 1 Calorie = 4.18 Joules

(2) 1Å=1010m

(3) 1  MeV=1.6×1013Joules

(4) 1Newton=105Dynes

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If x=at+bt2, where x is the distance travelled by the body in kilometres while t is the time in seconds, then the units of b are

(1) km/s

(2) kms

(3) km/s2

(4) kms2

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The equation (P+aV2)(Vb) = constant. The units of a are

(1) Dyne×cm5

(2) Dyne×cm4

(3) Dyne/cm3

(4) Dyne/cm2

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Which of the following quantity is expressed as force per unit area

(1) Work

(2) Pressure

(3) Volume

(4) Area

Concept Questions :-

Please attempt this question first.

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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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