Properties of Solids & Liquids-Pressure Due to a Fluid Column [JEE (Based on NTA Guidelines-IIT Engg.) Advanced Physics]: Questions 1 - 4 of 4
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Question 1
Appeared in Year: 2015
Question MCQ▾
A spherical body of radius consists of a fluid of constant density and is in equilibrium under its own gravity. If is the pressure at , then the correct option (s) is (are) :
Choices
Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |
Question 2
Appeared in Year: 2014
Question MCQ▾
glass capillary tube is of the shape of truncated cone with an apex angle so that its two ends have cross sections of different radii. When dipped in water vertically, water rises in it to a height , where the radius of its cross section is . If the surface tension of water is , its density is , and its contact angle with glass is , the value of will be:
( is the acceleration due to gravity)
Choices
Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |
Passage
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 and respectively. The upper end of the container is open to the atmosphere.
Question 3 (1 of 2 Based on Passage)
Appeared in Year: 2014
Question MCQ▾
If the piston is pushed at a speed of , the air comes out of the nozzle with a speed of:
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 4 (2 of 2 Based on Passage)
Appeared in Year: 2014
Question MCQ▾
If the density of air is and that of the liquid , then for a given piston speed the rate (Volume per unit time) at which the liquid is sprayed will be proportional to:
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |