A spray gun is shown in the figure where a piston pushes air out of a nozzle. A thin tube…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
A spray gun is shown in the figure where a piston pushes air out of a nozzle. A thin tube of uniform
cross section is connected to the nozzle. The other end of the tube is in a small liquid container. As the piston pushes air through the nozzle, the liquid from the container rises into the nozzle and is sprayed out. For the spray gun shown, the radii of the piston and the nozzle are 20 mm and 1 mm respectively. The upper end of the container is open to the atmosphere.
(ii) If the density of air is ra and that of the liquid rl, then for a given piston speed the rate (volume per unit time) at which the liquid is sprayed will be proportional to
cross section is connected to the nozzle. The other end of the tube is in a small liquid container. As the piston pushes air through the nozzle, the liquid from the container rises into the nozzle and is sprayed out. For the spray gun shown, the radii of the piston and the nozzle are 20 mm and 1 mm respectively. The upper end of the container is open to the atmosphere.
(ii) If the density of air is ra and that of the liquid rl, then for a given piston speed the rate (volume per unit time) at which the liquid is sprayed will be proportional to
- rl
Answer
(A)
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