Units and Dimensions

In terms of SI unit that  prefixes ${10}^{-15}$ is called_____.

Coulomb per second is equivalent to_____.

Weber per second is equivalent to ______.

How many microns are there in a metre?

Which of the following has the same dimension as that of linear momentum?

Electron-volt is a unit of _____.

One Horse-power is equal to_____.

Which of the following is a vector quantity?

Arrange the following units of length in increasing order:
$1.$ Angstrom
$2.$ Micron 
$3.$ Nanometer
Select the correct answer using the codes given below:

Which length unit among the following is the smallest?

‘Mho’ is the unit of _____ of a substance. 

$30°$Celcius = _____ Kelvin (approximately).

One calorie of heat energy is equivalent to approximately _____ joules of mechanical energy. 

Loudness of sound depends on:

Distances of stars are measured in:

In a particular system, the units of length, mass and time are chosen to be $10$ cm, $10$ g and $0.1$ s respectively. The unit of force in this system will be equivalent to:

Which of the following have the same unit?

Which of the following is not a vector quantity?

$730$ watts $=$ ______h.p. (approximately)

The S.I. unit of temperature is _____.