A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 16

EASY

11th West Bengal Board

IMPORTANT

Earn 100

Which of the following is a dimensional constant?

50% studentsanswered this correctly

Important Questions on Dimensions of Physical Quantities and Dimensional Analysis

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 17

Two quantities

A

and

B

have different dimensions. Which mathematical operation given below is physically meaningful?

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 18

Pressure depends on distance as

P = \frac{α}{β} e x p (\frac{- α z}{K θ}),

when

\frac{α}{β}

are constant,

z

is distance,

K

is Boltzmann's constant and

θ

is the temperature. The dimensions of

β

are

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 19

The refractive index of a material is given by the equation $n = A + \frac{B}{λ^{2}}$ , where $A$ and $B$ are constants.The dimensional formula for $B$ is

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 20

The position of a particle at time

t

is given by the equation

x (t) = \frac{v_{0}}{A} (1 - e^{A t})

, where

v_{0} =

constant and

A > 0

. Dimensions of

U_{0}

and

A

respectively are

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 21

If

E, M, J

and

G

respectively denote energy, mass, angular momentum and gravitational constant, then

\frac{E J^{2}}{M^{5} G^{2}}

has the dimension of

MEDIUM

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 22

The pairs of physical quantities that have the same dimensions is (are)

MEDIUM

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 23

Which of the following units denotes the dimensions

[\frac{M L^{2}}{Q^{2}}]

, where

Q

denotes the electric charge?

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 2 - Dimensions of Physical Quantities and Dimensional Analysis>EXERCISE>Q 24

Dimensions of

\frac{1}{μ_{0} \in_{0}}

, where the symbols have their usual meaning, are