Question

a) ___________is a unitless quantity.

i) Mass

ii) Time

iii) Mechanical advantage

iv) Density


b) ___________is a method of magnetisation.

i) Hammering

ii) Rubbing

iii) Cutting

iv) Heating


c) Friction is offered by -

i) Solids

ii) Liquids

iii) Gases

iv) All of these


d) Suitable unit for expressing the area of your district -

i) Hectare

ii) Square metre

iii) Square kilometre

iv) Deci metre


e) The constituents of a compound –

i) Can't be separated

ii) Can be separated by physical means

iii) Can be separated by chemical means

iv) None of these​

Answer 1

Answer:

${ \huge\fbox \pink {♥}\fbox \blue {A} \fbox\purple {N} \fbox \green{S} \fbox \red {W} \fbox \orange {E} \fbox{R} \fbox \gray{♥}}$

Explanation:

unit less quantity is the one in which there are no fundamental quantities involved. It doesn't have any unit and hence it doesn't have any dimensions. The dimension is Zero. Examples are, angle, elastic strain, Poisson's ratio etc.

___________is a unitless quantity.