QuestionKart - Questions

cds- Question :

Hair of a shaving brush cling together when the brush is removed from water due to

A :

viscosity

B :

surface tension

C :

friction

D :

elasticity

cds- Question :

Which one of the following statements is correct ?

A :

(a) The angle of contact of water with glass is acute, while that of mercury with glass is obtuse

B :

(b) glass is obtuse, while that of mercury with glass is acute

C :

D :

(d) None of the above

cds- Question :

the apparent weight of a steel sphere immersed in various liquids is measured using a spring balance the greatest reading is obtained for the liquid

A :

having the smallest density

B :

having the largest density

C :

in which the sphere was submerged deepest

D :

having the greatest volume

cds- Question :

If two conducting spheres are separately charged and then brought in contact

A :

The total energy of the two spheres is conserved

B :

the total charge on the two spheres is conserved

C :

both the total energy and the total charge are converved

D :

the final potential is always the mean of the original potential of the two spheres

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