# $1Pascal$=_______ $dyne\,c{m^{ - 2}}$

A. $10$

B. $\dfrac{1}{{10}}$

C. $100$

D. $1000$

Answer

Verified

279.6k+ views

**Hint:**A unit of measurement is a fixed magnitude of a quantity that is used as a standard for measuring other quantities of the same kind. It is specified and recognised by law or convention. A multiple of the unit of measurement may be used to express some other quantity of that kind.

**Complete step-by-step solution:**

Dyne: "The force needed to accelerate a mass of one gram at a rate of one centimetre per second squared," says the dyne. The dyne can also be described as "that force that, when acting for one second, causes a change in velocity of one centimetre per second in a mass of one gram."

Pascal: Internal strain, stress, Young's modulus, and ultimate tensile strength are all measured in pascals, a SI-derived unit of pressure. The unit is one newton per square foot, which in the CGS scheme is equivalent to \[10{\text{ }}barye\] . Blaise Pascal was the inspiration for the name.

Now, coming to the question;

$1N = {10^5}Dyne$

$1{m^2} = {10^4}c{m^2}$

$N/{m^2} = 10Dyne/c{m^2}$

\[1{\text{ }}Pa{\text{ }} = {\text{ }}10{\text{ }}dyn/c{m^2}.\] $\left[ {\because N/{m^2} = 1Pa} \right]$

**So, the correct option is (A) $10$.**

**Note:**A conversion factor is a formula that expresses the relationship between units and is used to adjust the units of a measured quantity without altering its value. When the numerator and denominator have the same value expressed in different units, the conversion ratio (or unit factor) is always one (1).

Recently Updated Pages

Basicity of sulphurous acid and sulphuric acid are

Define absolute refractive index of a medium

Which of the following would not be a valid reason class 11 biology CBSE

Why should electric field lines never cross each other class 12 physics CBSE

An electrostatic field line is a continuous curve That class 12 physics CBSE

What is meant by monosporic development of female class 11 biology CBSE

Trending doubts

What is 1 divided by 0 class 8 maths CBSE

Fill the blanks with the suitable prepositions 1 The class 9 english CBSE

What is the past tense of read class 10 english CBSE

What is pollution? How many types of pollution? Define it

Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE

Change the following sentences into negative and interrogative class 10 english CBSE

How many crores make 10 million class 7 maths CBSE

Give 10 examples for herbs , shrubs , climbers , creepers

How fast is 60 miles per hour in kilometres per ho class 10 maths CBSE