CONDUCTORS AND INSULATORS

A metal rod held in hand and rubbed with wool will not show any sign of being c… Read more CONDUCTORS AND INSULATORS

ELECTRIC CHARGE

Historically the credit of discovery of the fact that amber rubbed with wool or… Read more ELECTRIC CHARGE

Explain why (a) To keep a piece of paper horizontal, you should blow over, not under, it

Explain why  (a) To keep a piece of paper horizontal, you should blow over, not… Read more Explain why (a) To keep a piece of paper horizontal, you should blow over, not under, it

Fill in the blanks using the word(s) from the list appended with each statement: (a) Surface tension

Fill in the blanks using the word(s) from the list appended with each statement… Read more Fill in the blanks using the word(s) from the list appended with each statement: (a) Surface tension

Explain why (a) The angle of contact of mercury with glass is obtuse, while that of

Explain why  (a) The angle of contact of mercury with glass is obtuse, while th… Read more Explain why (a) The angle of contact of mercury with glass is obtuse, while that of

Explain why (a) The blood pressure in humans is greater at the feet than at the brain

Explain why (a) The blood pressure in humans is greater at the feet than at the… Read more Explain why (a) The blood pressure in humans is greater at the feet than at the brain

Capillary Rise

One consequence of the pressure difference across a curved liquid-air interface… Read more Capillary Rise

Drops and Bubbles

One consequence of surface tension is that free liquid drops and bubbles are sp… Read more Drops and Bubbles

Angle of Contact

The surface of liquid near the plane of contact, with another medium is in gene… Read more Angle of Contact

Surface Energy and Surface Tension

As we have discussed that an extra energy is associated with surface of liquids… Read more Surface Energy and Surface Tension

Surface Tension

You must have noticed that, oil and water do not mix; water wets you and me but… Read more Surface Tension