Question : If ice floating on water in a vessel melts, the water level in the vessel:

Option 1: Increases

Option 2: Does not change

Option 3: First increases before decreasing

Option 4: Decreases

Question : Which of the following statements is not correct about surface tension?

Option 1: Surface tension is typically measured in dynes cm.

Option 2: The shape of the water drop is spherical due to surface tension.

Option 3: At room temperature, the surface tension of water is less than ethyl alcohol.

Option 4: The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.

Question : What will happen to the level of water in a vessel when a piece of ice floating in it melts?

Option 1: Decreases

Option 2: Increases

Option 3: Remains same

Option 4: First increases and then decreases

Question : When MU is positive, what happens to TU?

Option 1: It decreases.

Option 2: It becomes the highest.

Option 3: It remains constant.

Option 4: It increases.

Question : An oil drop spreads over water because:

Option 1: oil is lighter than water.

Option 2: oil is more viscous.

Option 3: oil does not mix with water.

Option 4: surface tension of oils is much smaller than that of water.