The pressure at sea surface …….`P_(a)`.

(a) Pressure decreases as one ascends the atmosphere . If the density of air is rho ,what is the change in pressure dp over differential height dh ? (b) Considering the pressure P to be proportional to the density find the pressure P at a height h if the pressure on the surface of the earth is P_(o) . (c ) If P_(o)=1.03xx10^(5)N//m^(-2),rho_(o)=1.29kg//m^(3)andg=9.8m//s^(2) what height will the pressure frop to (1)/(10) the value at the surface of earth ? (d) This model of the atmosphere works for relatively small distance .Identify the underlying assumption that limits the model.

Two points A and B are at same depth in arest liquid . Then pressure on them P_(A)…….P_(B) .

A large pressure exerted on the surface of liquid having shape of ……..(concave /convex)

The excess pressure due to surface tension inside a spherical drop is 6 units . If eight such drops combine, then the excess pressure due to surface tension inside the larger drop is

Electromagnetic radiation of intensity I is made incident normally on a perfect nonreflecting surface (i.e perfect absorber). Then pressure developed on this surface would be …… .

The pressure of an ideal gas varies according to the law P = P_(0) - AV^(2) , where P_(0) and A are positive constants. Find the highest temperature that can be attained by the gas

The gravitation force exerted on rocket a time to height h from the surface of earth is 1/3 time to the gravitation force exerted at the surface of sea. Then obtain the relation between h and R_e (radius of earth).

As shown in figure lower portion of the manometer tube contains fluid of density rho_(1) and the upper part contains fluid of density rho_(2)(rho_(1)gtrho_(2)) . If pressures on the top of these two arms are P_(1)andP_(2) , calculate pressure differnce (P_(1)-P_(2)) .

A container filled with air under pressure P_(0) contains a soap bubble of radius R the air pressure has been reduced to half isothermally and the new radius of the bubble becomes (5R)/(4) if the surface tension of the soap water solution. Is S, P_(0) is found to be (12nS)/(R) . Find the value of n.