Physics MCQs for NEET — Practice Questions with Answers

Surface tension is more

Surface tension is less

Consumes less soap

None of these

28 N                         

14 N

50 N                         

38 N 

Surface tension of water is very high

Surface tension of water is very low

Viscosity of oil is high

The viscosity of water is high

Magnetic substances

Molecules of different substances

Molecules of same substances

None of these

Specific weight of liquid lead

Specific gravity of liquid lead

Compressibility of liquid lead

Surface tension of liquid lead

 $\left[{\mathrm{MLT}}^{-1}\right]$                 

 $\left[{\mathrm{ML}}^2{\mathrm{T}}^{-2}\right]$

 $\left[{\mathrm{ML}}^0{\mathrm{T}}^{-2}\right]$                 

 $\left[{\mathrm{ML}}^1{\mathrm{T}}^{-2}\right]$

0.07 N                               

0.06 N

0.01 N                               

0.02 N

 $280 \mathrm{\pi } \mathrm{dyne}$                     

 $250 \mathrm{\pi } \mathrm{dyne}$

 $140 \mathrm{\pi } \mathrm{dyne}$                       

 $210 \mathrm{\pi } \mathrm{dyne}$

The work done per unit area in increasing the surface area of a liquid under isothermal condition

The work done per unit area in increasing the surface area of a liquid under adiabatic condition

The work done per unit area in increasing the surface area of a liquid under both isothermal and adiabatic conditions

Free surface energy per unit volume

 $4\mathrm{\pi T}({\mathrm{nr}}^2-{\mathrm{R}}^2)$                       

 $\frac{4}{3}\mathrm{\pi }({\mathrm{r}}^3\mathrm{n}-{\mathrm{R}}^2)$

 $4\mathrm{\pi T}({\mathrm{R}}^2-{\mathrm{nr}}^2)$                         

 $4\mathrm{\pi T}({\mathrm{r}}^2\mathrm{n}+{\mathrm{R}}^2)$