Home
Class 12
PHYSICS
Figure shows a crude type of atomizer. i...

Figure shows a crude type of atomizer. is compressed, air flows swiftly through tube `BC` causing a reduced pressure in the particles of the vertical tube. Liquid rises in the tube, enters `BC` and is sprayed out. if the pressure in the bulb is `P_(a) + P`, where `P` is the gauge pressure and `P_(a)` is the atmospheric pressure, `v` is the speed of air in `BC`, find how large would `v` need to be to cause the liquid to rise to `BC`. Density of air `= 1.3 kg//m^(3)`.

A

` sqrt(2 ((P+ rho gh ))/(rho _a )) `

B

` (Phrho g ) /(sqrt(rho_a)) `

C

` (Psqrt(rho gh))/(sqrt(rho _a)) `

D

`(P)/(rho gh sqrt (rho_a)) `

Text Solution

Verified by Experts

The correct Answer is:
A
Using Bernoulli’s theorem
` P_ 0 + P + 0 + 0 = P_1 + (1)/(2) rho _a v ^ 2 + 0 `
` P_1 = P_0 - rho gh ` (if liquid rises to BC )
`P _0 + P=P _ 0 - rho gh + (1)/(2) rho_a v ^ 2 `
` sqrt(2 ((P + rho gh ))/(rho _a))= v `
Promotional Banner

Similar Questions

Explore conceptually related problems

Figure shows a crude type of atomizer. is compressed, air flows swiftly through tube BC causing a reduced pressure in the particles of the vertical to Liquid rises in the tube, enters BC and is sprayed out. if the pressure in the bulb is P_(a) + P , where P is the gauge pressure and P_(a) is the atmospheric pressure, v is the speed of air in BC , find how large would v need to be to cause the liquid to rise to BC . Density of air = 1.3 kg//m^(3) .

The pressure of confined air is p. If the atmospheric pressure is P, then :-

The figure shows a crude type of perfume atomizer. When bulb at A is compressed, air flows swifty through the tiny BC with uniform speed v , there by causing a reduced pressure at the position of verticall tube DE . The liquid of density 500kg//m^(3) , then rises in the tube, enters tube BC and sprayed out. When bulb is in natural position the air in the bulb and tube are at atmospheric pressure P_(0=15)^(5)N//m^(2) . When bulb A is compressed, it creates an exces pressure Deltap=0.001P_(0) inside the bulb A . Density of air is 1.3 kg//m^(3) . If the magnitude of minimum value of speed v required to cause the liquid to rise to tube BC is 5km//s . Find the value of k . ( g=10m//s^(2) )

How does the speed v of sound in air depend on the atmospheric pressure P?

Compare the pressure at the point P in the three tubes shown in the figure .

In the figure shown the velocity and pressure of the liquid at the cross section (2) are given by (If P_(0) is the atmospheric pressure).

When water flows through a tube of radius r placed horizontally, a pressure difference p develops across the ends of the tube. If the radius fo the tube is doubled and the rate fo flow halved, the pressure differnece will be

Suppose the pressure at the surface of mercury in as barometer tube is P_1 and the pressure at the surface of mercury in the cup is P_2 .