Oil rises up the wick in a lamp because (1) Oil is very light (2) Of the diffusion of oil through the wick (3) Of the surface tension phenomenon (4) Of the capillary action phenomenon

Oil rises up the wick in a lamp because (1) Oil is very light (2) Of the diffusion of oil through the wick (3) Of the surface tension phenomenon (4) Of the capillary action phenomenon
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(4) Of the capillary action phenomenon Explanation: It is because of the capillary action phenomenon because of which oil rise up the wick in a lamp. Capillary action, or capillarity, is the ability of a liquid to flow in narrow spaces without the assistance of, and in opposition to external forces like gravity. The effect can be seen in the drawing up of liquids between the hairs of a paint-brush, in a thin tube, in porous materials such as paper, in some nonporous materials such as liquefied carbon fiber, or in a cell.
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Oil rises up the wick in a lamp because (1) Oil is very light (2) Of the diffusion of oil through the wick (3) Of the surface tension phenomenon (4) Of the capillary action phenomenon

Description : Oil rises up the wick in a lamp because (1) Oil is very light (2) Of the diffusion of oil through the wick (3) Of the surface tension phenomenon (4) Of the capillary action phenomenon

Last Answer : (4) Of the capillary action phenomenon Explanation: It is because of the capillary action phenomenon because of which oil rise up the wick in a lamp. Capillary action, or capillarity, is the ability ... such as paper, in some nonporous materials such as liquefied carbon fiber, or in a cell.

Oil rises up the wick in a lamp because (1) Oil is very light (2) Of the diffusion of oil through the wick (3) Of the surface tension phenomenon (4) Of the capillary action phenomenon

Description : Oil rises up the wick in a lamp because (1) Oil is very light (2) Of the diffusion of oil through the wick (3) Of the surface tension phenomenon (4) Of the capillary action phenomenon

Last Answer : Of the capillary action phenomenon

In an oil lamp, the oil rises up in the wick due to _____? A. Capillary action B. Atmospheric pressure C. Viscosity of oil D. Change in temperature

Description : In an oil lamp, the oil rises up in the wick due to _____? A. Capillary action B. Atmospheric pressure C. Viscosity of oil D. Change in temperature

Last Answer : ANSWER: A

The oil in the wick of an oil lamp rises up due to (a) Pressure difference (b) Capillary action (c) Low viscosity of oil (d) Gravitational force

Description : The oil in the wick of an oil lamp rises up due to (a) Pressure difference (b) Capillary action (c) Low viscosity of oil (d) Gravitational force

Last Answer : Ans:(b)

The oil in the wick of an oil lamp rises up due to: (1) capillary action (2) low viscosity of oil (3) gravitational force (4) pressure difference

Description : The oil in the wick of an oil lamp rises up due to: (1) capillary action (2) low viscosity of oil (3) gravitational force (4) pressure difference

Last Answer : (1) capillary action Explanation: The oil in the wick of an oil lamp rises up due to capillary action.

In an oil lamp, the oil rises up in the wick due to? A. Capillary action (Answer) B. Atmospheric pressure C. Viscosity of oil D. Change in temperature

Description : In an oil lamp, the oil rises up in the wick due to? A. Capillary action (Answer) B. Atmospheric pressure C. Viscosity of oil D. Change in temperature

Last Answer : A. Capillary action (Answer)

The oil in the wick of an oil lamp rises up due to: (1) capillary action (2) low viscosity of oil (3) gravitational force (4) pressure difference

Description : The oil in the wick of an oil lamp rises up due to: (1) capillary action (2) low viscosity of oil (3) gravitational force (4) pressure difference

Last Answer : capillary action

The oil in the wick of lamp rises due to

Description : The oil in the wick of lamp rises due to

Last Answer : Pheonomenon of capillarity

The oil in the wick of lamp rises due to (1) Pressure difference (2) Pheonomenon of capillarity (3) Low viscosity of oil (4) Force of cohesion

Description : The oil in the wick of lamp rises due to (1) Pressure difference (2) Pheonomenon of capillarity (3) Low viscosity of oil (4) Force of cohesion

Last Answer : (2) Pheonomenon of capillarity Explanation: The oil in the wick of lamp rises due to phenomenon of capillarity. This phenomenon is called molecular property of matter.

The oil in the wick of lamp rises due to (1) Pressure difference (2) Pheonomenon of capillarity (3) Low viscosity of oil (4) Force of cohesion

Description : The oil in the wick of lamp rises due to (1) Pressure difference (2) Pheonomenon of capillarity (3) Low viscosity of oil (4) Force of cohesion

Last Answer : Pheonomenon of capillarity

A capillary tube is kept vertical in a beaker containing liquid. The height to which the liquid rises by capillary action is increased if (a) The radius of the capillary is large (b) The radius of the capillary is small (c) The density of the liquid is large (d) The surface tension of the liquid is small

Description : A capillary tube is kept vertical in a beaker containing liquid. The height to which the liquid rises by capillary action is increased if (a) The radius of the capillary is large (b) The radius of the ... small (c) The density of the liquid is large (d) The surface tension of the liquid is small

Last Answer : Ans:(b)

The absorption of ink by blotting paper involves: A. Viscosity of ink B. Capillary action phenomenon C. Diffusion of ink through the blotting D. Siphon action

Description : The absorption of ink by blotting paper involves: A. Viscosity of ink B. Capillary action phenomenon C. Diffusion of ink through the blotting D. Siphon action

Last Answer : ANSWER: B

The absorption of ink by blotting paper involves (a) Viscosity of ink (b) Capillary action phenomenon (c) Diffusion of ink through the blotting (d) Siphon action

Description : The absorption of ink by blotting paper involves (a) Viscosity of ink (b) Capillary action phenomenon (c) Diffusion of ink through the blotting (d) Siphon action

Last Answer : Ans:(b)

The absorption of ink by blotting paper involves - (1) capillary action phenomenon (2) viscosity of ink (3) siphon action (4) diffusion of ink through the blotting

Description : The absorption of ink by blotting paper involves - (1) capillary action phenomenon (2) viscosity of ink (3) siphon action (4) diffusion of ink through the blotting

Last Answer : (1) capillary action phenomenon Explanation: The ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.

The absorption of ink by blotting paper involves-----? A. Viscosity of ink B. Capillary action phenomenon (Answer) C. Diffusion of ink through the blotting D. Siphon action

Description : The absorption of ink by blotting paper involves-----? A. Viscosity of ink B. Capillary action phenomenon (Answer) C. Diffusion of ink through the blotting D. Siphon action

Last Answer : B. Capillary action phenomenon (Answer)

What makes the oil rise through the wick in an oil lamp?

Description : What makes the oil rise through the wick in an oil lamp?

Last Answer : What makes the oil rise through the wick in an oil lamp?

Rise of oil a wick is due to – (1) density of the oil (2) viscosity of the oil (3) surface tension of the oil (4) pressure of the oil

Description : Rise of oil a wick is due to – (1) density of the oil (2) viscosity of the oil (3) surface tension of the oil (4) pressure of the oil

Last Answer : (3) surface tension of the oil Explanation: The phenomenon of rise or fall of liquid in a capillary tube is called capillarity. Oil rises through a wick due to capillarity. The narrow ... tiny capillaries, through which oil rises. Capillary action is the result of adhesion and surface tension.

Rise of oil a wick is due to (1) density of the oil (2) viscosity of the oil (3) surface tension of the oil (4) pressure of the oil

Description : Rise of oil a wick is due to (1) density of the oil (2) viscosity of the oil (3) surface tension of the oil (4) pressure of the oil

Last Answer : surface tension of the oil

Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene. (A) 1 (B) 20 (C) 100 (D) 500

Description : Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene. (A) 1 (B) 20 (C) 100 (D) 500

Last Answer : (B) 20

A solid needle placed horizontally on the surface of the water floats due to (a) Surface tension (b) Capillary action (c) Cohesion (d) Adhesion

Description : A solid needle placed horizontally on the surface of the water floats due to (a) Surface tension (b) Capillary action (c) Cohesion (d) Adhesion

Last Answer : Ans:(a)

A solid needle placed horizon-tally on the surface of the water floats due to – (1) capillary action (2) water pressure (3) surface tension of water (4) viscosity of water

Description : A solid needle placed horizon-tally on the surface of the water floats due to – (1) capillary action (2) water pressure (3) surface tension of water (4) viscosity of water

Last Answer : (3) surface tension of water Explanation: A solid needle placed horizontally on the surface of water floats due to surface tension of water.

Which of the following is a result of Surface tension? (1) Gravitational pull (2) Viscosity (3) Capillary action (4) Radiation

Description : Which of the following is a result of Surface tension? (1) Gravitational pull (2) Viscosity (3) Capillary action (4) Radiation

Last Answer : (3) Capillary action Explanation: Capillary action is the result of adhesion and surface tension. Adhesion of water to the walls of a vessel will cause an upward force on the liquid at the edges ... intact, so instead of just the edges moving upward, the whole liquid surface is dragged upward.

Property responsible for the talcum powder to cling to the skin is the (A) Capillary action (B) Adhesion (C) Cohesion (D) Surface tension

Description : Property responsible for the talcum powder to cling to the skin is the (A) Capillary action (B) Adhesion (C) Cohesion (D) Surface tension

Last Answer : Option B

Capillary action is due to the (A) Surface tension (B) Cohesion of the liquid (C) Adhesion of the liquid molecules and the molecules on the surface of a solid (D) All of the above

Description : Capillary action is due to the (A) Surface tension (B) Cohesion of the liquid (C) Adhesion of the liquid molecules and the molecules on the surface of a solid (D) All of the above

Last Answer : Answer: Option D

A solid needle placed horizontally on the surface of the water floats due to (1) capillary action (2) water pressure (3) surface tension of water (4) viscosity of water

Description : A solid needle placed horizontally on the surface of the water floats due to (1) capillary action (2) water pressure (3) surface tension of water (4) viscosity of water

Last Answer : surface tension of water

Which of the following is a result of Surface tension ? (1) Gravitational pull (2) Viscosity (3) Capillary action (4) Radiation

Description : Which of the following is a result of Surface tension ? (1) Gravitational pull (2) Viscosity (3) Capillary action (4) Radiation

Last Answer : Capillary action

Capillary wick is a part of a) heat pump b) heat wheel c) heat pipe d) regenerator

Description : Capillary wick is a part of a) heat pump b) heat wheel c) heat pipe d) regenerator

Last Answer : heat pipe

Water rises in a capillary tube to a height h. It will rise to a height more than h. a.in a lift moving up with an acceleration b.in all the above cases c.107 dynes d.at the poles e.on the surface of moon

Description : Water rises in a capillary tube to a height h. It will rise to a height more than h. a.in a lift moving up with an acceleration b.in all the above cases c.107 dynes d.at the poles e.on the surface of moon

Last Answer : e. on the surface of moon

The process of imbibitions involves - (1) Diffusion (2) Capillary action (3) Absorption (4) Both (1) and (2)

Description : The process of imbibitions involves - (1) Diffusion (2) Capillary action (3) Absorption (4) Both (1) and (2)

Last Answer : (3) Absorption Explanation: The uptake or absorption of water by the solid substance without forming a solution is called imbibition. The substances absorbing water are called imbibants which do not dissolve in water. It is the initial step in the germination of the seeds.

The process of imbibition involves (1) Diffusion (2) Capillary action (3) Absorption (4) Both (1) and (2)

Description : The process of imbibition involves (1) Diffusion (2) Capillary action (3) Absorption (4) Both (1) and (2) 

Last Answer : Absorption

Smoke point of kerosene expresses its (A) Burning characteristics (B) Luminosity characteristics (C) Aromatic content directly (D) Lamp wick wetting characteristics

Description : Smoke point of kerosene expresses its (A) Burning characteristics (B) Luminosity characteristics (C) Aromatic content directly (D) Lamp wick wetting characteristics

Last Answer : (A) Burning characteristics

Pieces of camphor placed on water move about rapidly. This is because of - (1) diffusion (2) viscosity (3) surface tension (4) capillarity

Description : Pieces of camphor placed on water move about rapidly. This is because of - (1) diffusion (2) viscosity (3) surface tension (4) capillarity

Last Answer : (3) surface tension Explanation: The Camphor slowly dissolves in the water lowering the latter's surface tension in the immediate neighbourhood. When after sometime the whole surface settles for the reduced tension, the movement of the camphor too short.

Pieces of camphor placed on water move about rapidly. This is because of - (1) diffusion (2) viscosity (3) surface tension (4) capillarity

Description : Pieces of camphor placed on water move about rapidly. This is because of - (1) diffusion (2) viscosity (3) surface tension (4) capillarity

Last Answer : (3) surface tension Explanation: The Camphor slowly dissolves in the water lowering the latter’s surface tension in the immediate neighborhood. The stronger pull exerted by the uncontaminated portion of water brings about a movement of the surface and the camphor particles are carried along with it.

The process of diffusion of one liquid into the other through a semi permeable membrane is called (A) Viscosity (B) Osmosis (C) Surface tension (D) Cohesion

Description : The process of diffusion of one liquid into the other through a semi permeable membrane is called (A) Viscosity (B) Osmosis (C) Surface tension (D) Cohesion

Last Answer : Answer: Option B

Which of the following is the term used for the resistance of a liquid system to flow? w) surface tension x) diffusion y) viscosity

Description : Which of the following is the term used for the resistance of a liquid system to flow? w) surface tension x) diffusion y) viscosity

Last Answer : ANSWER: Y -- VISCOSITY

How do I calculate capillary entry pressure for a given pore width and and a known surface tension?

Description : How do I calculate capillary entry pressure for a given pore width and and a known surface tension?

Last Answer : I’m not a scientist but I did have a flash of intuition while reading your question. Must not these calculations have been made when the type of waterproof/breathable fabric that admits vapor but not water? The patents are certainly public.

The following observations were taken for determining surface tension T of water by capillary method: (A) 0.15%  (B) 1.5% 

Description : The following observations were taken for determining surface tension T of water by capillary method: (A) 0.15%  (B) 1.5% 

Last Answer : The following observations were taken for determining surface tension T of water by capillary method: diameter of capillary ... (C) 2.4% (D) 10%

The water, retained by the soil in capillary pores (micropores), against gravity (-1/3 to - 31 bar) by the force of surface tension

Description : The water, retained by the soil in capillary pores (micropores), against gravity (-1/3 to - 31 bar) by the force of surface tension

Last Answer : Ans.Capillary water

Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury) (A) d (B) 1/d (C) σ (D) 1/σ

Description : Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury) (A) d (B) 1/d (C) σ (D) 1/σ

Last Answer : (C) σ

Pick out the wrong statement. (A) The binary diffusivity in liquids is of the order of 10 -5 cm2 /sec (B) Molecular diffusion in solid is much faster than that in liquids (C) Particles movement from higher concentration to lower concentration takes place in diffusion process (D) According to Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary

Description : Pick out the wrong statement. (A) The binary diffusivity in liquids is of the order of 10 -5 cm2 /sec (B) Molecular diffusion in solid is much faster than that in liquids ( ... Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary

Last Answer : (B) Molecular diffusion in solid is much faster than that in liquids

The most important factor which governs diffusion of drugs across capillaries other than those in the brain is: A. Blood flow through the capillary B. Lipid solubility of the drug C. pKa value of the drug D. pH of the medium

Description : The most important factor which governs diffusion of drugs across capillaries other than those in the brain is: A. Blood flow through the capillary B. Lipid solubility of the drug C. pKa value of the drug D. pH of the medium

Last Answer : A. Blood flow through the capillary

The most important factor which governs diffusion of drugs across capillaries other than those in the brain is: A. Blood flow through the capillary B. Lipid solubility of the drug C. pKa value of the drug D. pH of the medium

Description : The most important factor which governs diffusion of drugs across capillaries other than those in the brain is: A. Blood flow through the capillary B. Lipid solubility of the drug C. pKa value of the drug D. pH of the medium

Last Answer : A. Blood flow through the capillary

If an ordinary glass tube and a glass capillary tube are 'both clipped in a beaker of water, water rises in – (1) both (2) only the glass tube (3) only the capillary tube (4) neither

Description : If an ordinary glass tube and a glass capillary tube are 'both clipped in a beaker of water, water rises in – (1) both (2) only the glass tube (3) only the capillary tube (4) neither

Last Answer : (1) both Explanation: The rise or fall of liquid due to capillarity in a beaker of water depends upon the radius of the bore of the tube (s) which is/are dipped into it. The narrower the bore of ... in the tube. So in this case, water will rise in both the glass tube and the glass capillary tube.

If an ordinary glass tube and a glass capillary tube are both dipped in a beaker of water, water rises in (1) both (2) only the glass tube (3) only the capillary tube (4) neither

Description : If an ordinary glass tube and a glass capillary tube are both dipped in a beaker of water, water rises in (1) both (2) only the glass tube (3) only the capillary tube (4) neither

Last Answer : both

Which of the following resistances is not involved in a gas phase catalytic (gas-solid) reaction?(A) Ash resistance (B) Gas film and pore surface diffusion resistances for reactants (C) Surface phenomenon resistance (D) Gas film and pore surface diffusion resistances for products

Description : Which of the following resistances is not involved in a gas phase catalytic (gas-solid) reaction? (A) Ash resistance (B) Gas film and pore surface diffusion resistances for reactants (C) Surface phenomenon resistance (D) Gas film and pore surface diffusion resistances for products

Last Answer : (A) Ash resistance

Which one of the following statements is correct ? (a) Dynamic viscosity is the property of a fluid which is not in motion (b) Surface energy is a fluid property giving rise to the phenomenon of capillarity in water (c) Cavitation results from the action of very high pressure (d) Real fluids have lower viscosity than ideal fluids

Description : Which one of the following statements is correct ? (a) Dynamic viscosity is the property of a fluid which is not in motion (b) Surface energy is a fluid property giving rise to the phenomenon ... results from the action of very high pressure (d) Real fluids have lower viscosity than ideal fluids

Last Answer : (d) Real fluids have lower viscosity than ideal fluids

When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of - (1) surface tension (2) capillarit (3) viscosity (4) diffusion

Description : When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of - (1) surface tension (2) capillarit (3) viscosity (4) diffusion

Last Answer : (1) surface tension Explanation: Diffusion is the spreading – mixing of gases through molecular motion.

Stars in the sky appear to twinkle due to – (1) a series of refractions (2) a series of reflections (3) a surface tension phenomenon (4) multiple diminishing brightness

Description : Stars in the sky appear to twinkle due to – (1) a series of refractions (2) a series of reflections (3) a surface tension phenomenon (4) multiple diminishing brightness

Last Answer : (1) a series of refractions Explanation: The movement of air (sometimes called turbulence) in the atmosphere of Earth causes a series of refractions which makes the starlight to get slightly bent as it ... directly and some gets bent slightly away. To our eyes, this makes the star seem to twinkle.

Stars in the sky appear to twinkle due to (1) a series of refractions (2) a series of reflections (3) a surface tension phenomenon (4) multiple diminishing brightness

Description : Stars in the sky appear to twinkle due to (1) a series of refractions (2) a series of reflections (3) a surface tension phenomenon (4) multiple diminishing brightness 

Last Answer : a series of refractions

If you have only one match and you walked into a room where there was an oil burner, a kerosene lamp, and a wood burning stove, what would you light first? ..the kerosene lamp because it is easier ..the oil burner... the wood burning stove... the thing in my hand

Description : If you have only one match and you walked into a room where there was an oil burner, a kerosene lamp, and a wood burning stove, what would you light first? ..the kerosene lamp because it is easier ..the oil burner... the wood burning stove... the thing in my hand

Last Answer : the thing in my hand