Units and Measurements Test

Result

Units and Measurements Test - 65

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Weekly Quiz Competition

Question 1
4 / -1

The dimensional formula for impulse is

A

B

C

D

Solution
Question 2
4 / -1

The dimensional formula for the modulus of rigidity is

A

B

C

D

Solution
Question 3
4 / -1

The dimensional formula for impulse is same as the dimensional formula for

A
Momentum

B
Force

C
Rate of change of momentum

D
Torque
Question 4
4 / -1

The dimensional formula for r.m.s (root mean square) velocity for

A

B

C

D

Solution
Question 5
4 / -1

Which of the following is dimensionally correct?

A
Pressure = Energy per unit area

B
Pressure = Energy per unit volume

C
Pressure = Energy per unit volume

D
Pressure = Momentum per unit volume per unit time

Solution
Question 6
4 / -1

A

B

C

D

Solution
Question 7
4 / -1

If L denotes the inductance of an inductor through which a current i is flowing, the dimensions of Li² are

A

B
Not expressible in MLT

C

D

Solution
Question 8
4 / -1

Of the following quantities, which one has dimensions different from the remaining three?

A
Energy per unit volume

B
Force per unit area

C
Product of voltage and charge per unit volume

D
Angular momentum per unit mass

Solution
Question 9
4 / -1

A spherical body of mass m and radius is allowed to fall in a medium of viscosity η. The time in which the velocity of the body increases from zero to 0.63 times the terminal velocity (v) is called time constant (τ). Dimensionally τ can be represented by

A

B

C

D
None of these

Solution
Question 10
4 / -1

The frequency of vibration f of a mass m suspended from a spring of spring constant K is given by a relation of this type, f = Cm^xK^y; where C is dimensionless quantity. The value of x and y are

A

B

C

D

Solution