Which of the following is the smallest unit?

(1) Millimetre

(2) Angstrom

(3) Fermi

(4) Metre

Subtopic:  Dimensions |
 79%
From NCERT
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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

Subtopic:  Dimensions |
 71%
From NCERT
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The units of modulus of rigidity are

(1) Nm

(2) N/m

(3) Nm2

(4) N/m2

Subtopic:  Dimensions |
 63%
From NCERT
PMT - 1997
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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)

Subtopic:  Dimensions |
 53%
From NCERT
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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

[This question includes concepts from 12th syllabus] 

Codes:                                                                                        

(1) IA,IIF,IIIE,IVD

(2) IC,IIF,IIIA,IVB

(3) IC,IIF,IIIA,IVE

(4) IB,IIF,IIIA,IVC

Subtopic:  Dimensions |
 69%
From NCERT
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Which relation is wrong?

(1) 1 Calorie = 4.18 Joules

(2) 1 Å=1010m

(3) 1  MeV=1.6×1013Joules

(4) 1Newton=105Dynes

Subtopic:  Dimensions |
 53%
From NCERT
PMT - 1997
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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

Subtopic:  Dimensions |
 83%
From NCERT
PMT - 1993
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Given the equation \(\left(P+\frac{a}{V^2}\right)(V-b)=\text {constant}\). The units of \(a\) will be: (where \(P\) is pressure and \(V\) is volume)
1. \(\text{dyne} \times \text{cm}^5\)
2. \(\text{dyne} \times \text{cm}^4\)
3. \(\text{dyne} / \text{cm}^3\)
4. \(\text{dyne} / \text{cm}^2\)

Subtopic:  Dimensions |
 60%
From NCERT
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Which of the following quantity is expressed as force per unit area

(1) Work

(2) Pressure

(3) Volume

(4) Area

Subtopic:  Dimensions |
 89%
From NCERT
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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

Subtopic:  Dimensions |
 67%
From NCERT
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