System of unit - class-XII
Description: system of unit | |
Number of Questions: 32 | |
Created by: Amit Pandey | |
Tags: measurements and uncertainties measurements nature of the physical world and measurement measurement and measuring instrument physical world and measurement physics dynamics - explaining motion units and measurements units and measurement: error analysis measurements and experimentation units and measurement physical quantities and measurement |
If 1 kg wt = 10 N, the value of gravitational intensity will be
The magnetic field flux is expressed in
Which of the following class of forces is different from others?
Which kind of waves are produced by supersonic jet planes?
100 square millimetres ($mm^2$ )= ________ square centimetre($cm^2$).
_______ square centimetres = $1$ square decimetre ($dm^2$ )
Which of the following is used as SI prefixes:
Which of the following is not used as SI prefixes:
Which of the following is used as SI prefixes:
Which of the following is used as SI prefix:
If the values of force and length are increased four times, then the unit of energy will be increase by:
If unit of mass, length and time are tripled, then unit of energy becomes:
If a thermometer reads freezing point of water at 20 degree Celsius and boiling point as 150 degree Celsius, how much thermometer can read when the actual temperature is 60 degree Celsius?
The unit of length, mass and energy are doubled.Which of the following is /are correct?
In the equation $\left( P+\dfrac { a }{ { V }^{ 2 } } \right) \left( v-b \right) =RT,$ the SI unit of a is
The melting point of pure ice is
If $10 ^ { 7 }$ erg is taken as unit of energy, $10 ^ { 5 }$ dyne as theunti of force, one second as unit of time, what is the unit of length?
On a hypothetical scale X, the ice point in ${ 40 }^{ \circ }$ and then steam point is ${ 120 }^{ \circ }$. For another scale Y the ice point and stem points are ${ -30 }^{ \circ }$ and ${ 130 }^{ \circ }$ respectively. If X-reads ${ 50 }^{ \circ }$ The read of Y is
Which of the following temperature scale doesn't have negative number.
1 dyne $=$ _____ $N$.
$1$ Newton$=$ $K$ dyne, then what is the value of $K$?
Express the speed $36 km h^{-1}$ in $m s^{-1}$.
$\displaystyle kg{ ms }^{ -1 }$ is the SI unit of
Density of mercury in MKS is 13600 kg m$^{-3}$ then in CGS is:
If 1 g cm$^{-3} = 10^3\,kg\, m^{-3}$ then $10^6kgm^{-3}=$
$1^o A$ is ____
Which among the following is the smallest prefix?
Temperature can be expressed as a derived quantity in terms of :
The physical quantity having the same unit in all the systems of unit is :
A ______ is the interval from one noon to the next noon.
SI unit of Magnetic flux is weber and its CGS unit is maxwell. Then 1 Wb = :
$S = A(1 - e^{-Bxt})$, where S is speed and x is displacement. The unit of B is :