Units and Measurements Test

Result

Units and Measurements Test - 52

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Weekly Quiz Competition

Question 1
4 / -1

Dimensional formula of magnetic flux is

A
ML²T^–2A^–1

B
ML⁰T^–2A^–2

C
M⁰L^–2T^–2A^–3

D
ML²T^–2A³

Solution
Question 2
4 / -1

If P represents radiation pressure, c represents speed of light and Q represents radiation energy striking a unit area per second, then non-zero integers x, y and z such that P^xQ^yc^z is dimensionless, are

A
x = 1, y = 1, z = –1

B
x = 1, y = –1, z = 1

C
x = –1, y = 1, z = 1

D
x = 1, y = 1, z = 1

Solution
Question 3
4 / -1

A
Time

B
Mass

C
Length

D
Force

Solution
Question 4
4 / -1

The pair having the same dimensions is

A
Angular momentum, work

B
Work, torque

C
Potential energy, linear momentum

D
Kinetic energy, velocity
Question 5
4 / -1

If R and L represent respectively resistance and self inductance, which of the following combinations has the dimensions of frequency ?

A

B

C

D

Solution
Question 6
4 / -1

ML^–1T^–2 represents

A
Stress

B
Young's Modulus

C
Pressure

D
All the above three quantities
Question 7
4 / -1

Dimensions of magnetic field intensity is

A
[M⁰L^–1T⁰A¹]

B
[MLT^–1A^–1]

C
[ML⁰T^–2A^–1]

D
[MLT^–2A]

Solution
Question 8
4 / -1

A force F is given by F = at + bt², where is time. What are the dimensions of a and b ?

A
MLT^–3 and ML²T^–4

B
MLT^–3 and MLT^–4

C
MLT^–1 and MLT⁰

D
MLT^–4 and MLT¹

Solution
Question 9
4 / -1

If the speed of light (c), acceleration due to gravity (g) and pressure (p) are taken as the fundamental quantities, then the dimension of gravitational constant is

A
c²g⁰p^–2

B
c⁰g²p^–1

C
cg³p^–2

D
c^–1g⁰p^–1

Solution
Question 10
4 / -1

A
M¹L⁰T^–2

B
M⁰L¹T^–1

C
M¹L¹T^–2

D
M¹L⁰T^–1

Solution