Liquid always seek their own level.` "____________"`

Assertion : The drop of a liquid is always spherical or nearly spherical. Reason : Water is not a viscous liquid.

Liquid flow from a higher to a level .Which of the following liquids can climb up the wall of the glass vessel in which it is placed ?

Consider the following statements. a. NPP is the available blomass for the consumption to herbivores and decomposers. b. Plants capture only 2 - 10 percent of PAR. c. Energy at lower trophic level is always less than at a higher level. d. Earth is an open ecosystem w.r.t. energy. The correct statements are

Assertion : At same level of same liquid pressure is always same. Reason : When any fluid travels from a region of higher pressure to lower pressure (At same levels) it gains same speed.

Assertion : The impurities always decrease the surface tension of a liquid. Reason : The change in surface tension of the liquid depends upon the degree of contamination of the impurity.

A solid floats in a liquid of different material. Carry out an analysis to see whether the level of liquid in the container will rise or fall when the solid melts.

When the rectangular metal tank is filled to the top with an unkown liquid, as observer with eyes level with the top of the tank can just see the corner E, a ray that refracts towards the observer at the top surface of the liquid is shown. The refractive index of the liquid will be

A V-shaped glass tube of uniform cross section is kept in a vertical plane as shown. A liquid is poured in the tube. In equilibrum the level of liquid in both limds of tube. Find the angular frequency of small oscillation of liquid.

In a constant volume gas thermometer, the pressure of the working gas is measured by the difference in the levels of mercury in the two arms of a U-tube connected to the gas at one end. When the bulb is placed at the room temperature 27.0^0 C , the mercury column in the arm open to atmosphere stands 5.00 cm above the level of mercury in the other arm. When the bulb is placed in a hot liquid, the difference of mercury levels becomes 45.0 cm . Calculate the temperature of the liquid. (Atmospheric pressure = 75.0cm of mercury).