Physics - Online Test

According to Pascal's Law,

P-P0 = hdg

from above

Change in pressure is directly proportional to depth from the free surface.

At the same horizonatal line all point are at the same depth and have same value of acceleration due to gravity and denity of water as well.

Avogadro's law states that, "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules"

For a given mass of an ideal gas, the volume and amount (moles) of the gas are directly proportional if the temperature and pressure are constant.

V∝nVn=k

TZ−TLTU−TL=TC−0100−0=TF−32212−32

TU = B.P. of water

TL = M.P. of ice

The SI base units and their physical quantities are the metre for measurement of length, the kilogram for mass, the second for time, the ampere for electric current, the kelvin for temperature, the candela for luminous intensity, and the mole for amount of substance.

Frequency is defined as number of oscillation completed by an oscillating body in unit time i.e. in one second during oscillatory motion.

                           ν=1T