SI unit of pressure is

Q: $SI$ unit of pressure is

a The SI unit of pressure is pascal (represented as $Pa$) which is equal to one newton per square metre $\left( N / m ^2\right.$ or $kg m ^{-1} s ^{-2}$ ). Interestingly, this name was given in $1971$ . Before that pressure in $SI$ was measured in $newtons$ $per$ $square$ $metre$.

SECTION - A [PHYSICS MCQ]

GSEB - English Medium

$SI$ unit of pressure is

A
Pascal
B$Dynes/c{m^2}$
C$cm\,$ of $Hg$
D
Atmosphere

Easy

STD 11 Science
JEE
STD 11 - 1. units,dimensions and measurement
Physics

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Download App

Similar Questions

1
Two resistance are measured in $Ohm$ and is given as

$R_1 = 3 \Omega \pm 1\%$ and $R_2 = 6 \Omega \pm 2\%$ When they are connected in parallel, the percentage error in equivalent resistance is.......... $\%$
View Solution
2
Diagrams show readings of a screw gauge. figure $(i)$ shows the zero error reading when the screw gauge is closed, figure $(ii)$ the reading when the screw gauge is being used to measure the diameter of a ball-bearing. What is the diameter of the ball-bearing in $mm$? There are $50$ divisions on circular scale
View Solution
3
Which of the following is dimensionally incorrect?
View Solution
4
The unit of permittivity of free space is
View Solution
5
In a simple pendulum experiment for determination of acceleration due to gravity $(g)$, time taken for $20$ oscillations is measured by using a watch of $1$ second least count. The mean value of time taken comes out to be $30s$. The length of pendulum is measured by using a meter scale of least count $1\ mm$ and the value obtained is $55.0\ cm$. The percentage error in the determination of $g$ is close to $ ........... \%$
View Solution
6
The percentage error in measurement of mass and speed are $3\%$ and $2\%$ then error in kinetic energy will be .......... $\%$
View Solution
7
If error in measuring diameter of a circle is $4\%$, the error in radius of the circle would be
View Solution

Match List-I with List-II and select the correct answer by using the codes given below the lists

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

View Solution

9
The dimensions of resistivity in terms of $M,\,L,\,T$ and $Q$ where $Q$ stands for the dimensions of charge, is
View Solution
10
The unit of Planck's constant is
View Solution

Download our appand get started for free

Similar Questions

Download our app
and get started for free