Water drops cannot stick to the oily surface due to – (1) lack of adhesive force (2) surface tension (3) cannot mix each other (4) water is lighter than oil

Water drops cannot stick to the oily surface due to – (1) lack of adhesive force (2) surface tension (3) cannot mix each other (4) water is lighter than oil
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(2) surface tension Explanation: The separation of oil and water is caused due to the difference in surface tension of the two liquids. The water molecules stick together tightly and does not mix with the oil because water molecules are attracted to each other very strongly, forming an invisible "skin" of surface tension around each drop.
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Water drops cannot stick to the oily surface due to (1) lack of adhesive force (2) surface tension (3) cannot mix each other (4) water is lighter than oil

Description : Water drops cannot stick to the oily surface due to (1) lack of adhesive force (2) surface tension (3) cannot mix each other (4) water is lighter than oil

Last Answer : surface tension

Ail oil drop spreads over water because (1) oil is lighter than water (2) oil is more viscous (3) oil does not mix with water (4) surface tension of oil is much smaller than that of water

Description : Ail oil drop spreads over water because (1) oil is lighter than water (2) oil is more viscous (3) oil does not mix with water (4) surface tension of oil is much smaller than that of water

Last Answer : (4) surface tension of oil is much smaller than that of water Explanation: Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. It is ... is caused by cohesion of similar molecules, and is responsible for many of the behaviors of liquids.

An oil drop spreads over water because (1) oil is lighter than water (2) oil is more viscous (3) oil does not mix with water (4) surface tension of oil is much smaller than that of water

Description : An oil drop spreads over water because (1) oil is lighter than water (2) oil is more viscous (3) oil does not mix with water (4) surface tension of oil is much smaller than that of water

Last Answer : surface tension of oil is much smaller than that of water

Surface tension in a liquid is due to : (1) Adhesive force between molecules (2) Cohesive force between molecules (3) Gravitational force between molecules (4) Electrical force between molecules

Description : Surface tension in a liquid is due to : (1) Adhesive force between molecules (2) Cohesive force between molecules (3) Gravitational force between molecules (4) Electrical force between molecules

Last Answer : (2) Cohesive force between molecules Explanation: Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. This property is caused by cohesion of similar molecules, and is responsible for many of the behaviors of liquids.

Surface tension in a liquid is due to : (1) Adhesive force between molecules (2) Cohesive force between molecules (3) Gravitational force between molecules (4) Electrical force between molecules.

Description : Surface tension in a liquid is due to : (1) Adhesive force between molecules (2) Cohesive force between molecules (3) Gravitational force between molecules (4) Electrical force between molecules.

Last Answer :  Cohesive force between molecules

Water drop cannot stick to the oily surface due to

Description : Water drop cannot stick to the oily surface due to

Last Answer : lack of adhesive force

Water drop cannot stick to the oily surface due to

Description : Water drop cannot stick to the oily surface due to

Last Answer : lack of adhesive force

A needle or a pin floats on the surface of water because of – (1) Surface tension (2) Surface energy (3) Viscosity (4) Adhesive force

Description : A needle or a pin floats on the surface of water because of – (1) Surface tension (2) Surface energy (3) Viscosity (4) Adhesive force

Last Answer : (1) Surface tension Explanation: The pin or needle floats because of an invisible elastic skin on the surface of the water. This elastic skin is called surface tension. Surface tension of the water leads to forces strong enough to support the needle's weight.

A needle or a pin floats on the surface of water because of (1) Surface tension (2) Surface energy (3) Viscosity (4) Adhesive force

Description : A needle or a pin floats on the surface of water because of (1) Surface tension (2) Surface energy (3) Viscosity (4) Adhesive force

Last Answer :  Surface tension

Surface tension in a liquid is due to : (1) Adhesive force between molecules (2) Cohesive force between molecules (3) Gravitational force between molecules (4) Electrical force between molecules

Description : Surface tension in a liquid is due to : (1) Adhesive force between molecules (2) Cohesive force between molecules (3) Gravitational force between molecules (4) Electrical force between molecules

Last Answer : (2) Cohesive force between molecules Explanation: Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. This property is caused by cohesion of similar molecules, and is responsible for many of the behaviors of liquids.

Rain drops falling through atmospheric air attain limited terminal velocity, because of (A) Upward thrust due to air (B) Viscous force exerted by air (C) Surface tension effects of water (D) Force of gravity

Description : Rain drops falling through atmospheric air attain limited terminal velocity, because of (A) Upward thrust due to air (B) Viscous force exerted by air (C) Surface tension effects of water (D) Force of gravity

Last Answer : Option B

Rain drops acquire spherical shape due to - (1) viscosity (2) surface tension (3) friction (4) elasticity

Description : Rain drops acquire spherical shape due to - (1) viscosity (2) surface tension (3) friction (4) elasticity

Last Answer : (2) surface tension Explanation: The Surface tension pulls the surface of the drop equally at all points thus produces the spherical shape having the minimum surface area.

Rain drops acquire spherical shape due to - (1) viscosity (2) surface tension (3) friction (4) elasticity

Description : Rain drops acquire spherical shape due to - (1) viscosity (2) surface tension (3) friction (4) elasticity

Last Answer : (2) surface tension Explanation: The Surface tension pulls the surface of the drop equally at all points thus produces the spherical shape having the minimum surface area.

An egg sinks in soft water but floats in a concentrated solution of salt because – (1) Egg absorbs salt from the solution and expands (2) Albumin dissolves in salt solution and egg becomes lighter (3) The density of salt solution exceeds the density of eggs (4) Water has high surface tension

Description : An egg sinks in soft water but floats in a concentrated solution of salt because – (1) Egg absorbs salt from the solution and expands (2) Albumin dissolves in salt solution and egg becomes lighter (3) The density of salt solution exceeds the density of eggs (4) Water has high surface tension

Last Answer : (3) The density of salt solution exceeds the density of eggs Explanation: Following the density principle, the density of the egg compared to the density of the tap water is lesser (the density principle ... and that is why an egg sinks in soft water but floats in a concentrated solution of salt.

An egg sinks in soft water but floats in a concentrated solution of salt because (1) egg absorbs salt from the solution and expands (2) albumin dissolves in salt solution and egg becomes lighter (3) the density of salt solution exceeds the density of eggs (4) water has high surface tension

Description : An egg sinks in soft water but floats in a concentrated solution of salt because (1) egg absorbs salt from the solution and expands (2) albumin dissolves in salt solution and egg becomes lighter (3) the density of salt solution exceeds the density of eggs (4) water has high surface tension

Last Answer : the density of salt solution exceeds the density of eggs

The force responsible for drops of liquid assuming a spherical shape is known as: w) strong nuclear force x) Van der Waals attraction y) surface tension z) osmotic pressure

Description : The force responsible for drops of liquid assuming a spherical shape is known as: w) strong nuclear force x) Van der Waals attraction y) surface tension z) osmotic pressure

Last Answer : ANSWER: Y -- SURFACE TENSION

Water drops are spherical because of - (1) viscosity (2) density (3) polarity (4) surface tension

Description : Water drops are spherical because of - (1) viscosity (2) density (3) polarity (4) surface tension

Last Answer : (4) surface tension Explanation: Surface tension is responsible for the shape of liquid droplets. Although easily deformed, droplets of water tend to be pulled into a spherical shape by ... absence of other forces, including gravity, drops of virtually all liquids would be approximately spherical.

Falling drops of water become spheres due to the property of (A) Surface tension of water (B) Compressibility of water (C) Capillarity of water (D) Viscosity of water

Description : Falling drops of water become spheres due to the property of (A) Surface tension of water (B) Compressibility of water (C) Capillarity of water (D) Viscosity of water

Last Answer : Answer: Option A

Falling drops of water become spheres due to the property of (A) Adhesion (B) Cohesion (C) Surface tension (D) Viscosity

Description : Falling drops of water become spheres due to the property of (A) Adhesion (B) Cohesion (C) Surface tension (D) Viscosity

Last Answer : Answer: Option C

When Calcium reacts with water it starts floating on top of water because A) bubbles of carbon dioxide formed stick to the surface of metal B) bubbles of hydrogen formed stick to the surface of metalC) Calcium is lighter than water D) None of the above

Description : When Calcium reacts with water it starts floating on top of water because A) bubbles of carbon dioxide formed stick to the surface of metal B) bubbles of hydrogen formed stick to the surface of metalC) Calcium is lighter than water D) None of the above

Last Answer : B) bubbles of hydrogen formed stick to the surface of metal

Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces(B) A hydrometer used for the determination of specific gravities of liquidsworks on the principle of buoyant forces(C) In case of unsteady fluid flow, the velocity at any given point does notchange with time(D) Turbulent fluid flow is characterised by the rapid fluctuation ofinstantaneous pressure & velocity at a poin

Description : Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces (B) A hydrometer used for the determination of ... Turbulent fluid flow is characterised by the rapid fluctuation of instantaneous pressure & velocity at a poin

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Surface tension of liquids is the result of which the following: w) interaction of a liquid with its container x) unbalanced forces on the liquid's surface molecules y) adhesive forces of the liquid z) interaction of the liquid's surface molecules and the applied pressure

Description : Surface tension of liquids is the result of which the following: w) interaction of a liquid with its container x) unbalanced forces on the liquid's surface molecules y) adhesive forces of the liquid z) interaction of the liquid's surface molecules and the applied pressure

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The deficiency in rain catch due to vertical acceleration of air forced upward over the gauge, is (A) Greater for heavy rain (B) Greater for lighter rain (C) Greater for large drops (D) Lesser for small rain drops

Description : The deficiency in rain catch due to vertical acceleration of air forced upward over the gauge, is (A) Greater for heavy rain (B) Greater for lighter rain (C) Greater for large drops (D) Lesser for small rain drops

Last Answer : Answer: Option B

A fresh egg sinks in pure water but floats in salty water. This is because (a) Saline water is denser than pure water (b) Saline water is lighter than pure water (c) The viscosity of saline water is higher than that of pure water (d) The surface tension of saline water is lower than that of pure water

Description : A fresh egg sinks in pure water but floats in salty water. This is because (a) Saline water is denser than pure water (b) Saline water is lighter than pure water (c) The viscosity of saline water ... than that of pure water (d) The surface tension of saline water is lower than that of pure water

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A falling drop of rain water ac-quires the spherical shape due to – (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force

Description : A falling drop of rain water ac-quires the spherical shape due to – (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force

Last Answer : (2) Surface Tension Explanation: Raindrops start out as round high in the atmosphere as water collects on dust and smoke particles in clouds. But as raindrops fall, they lose their rounded ... the molecules stick together. The cause is the weak hydrogen bonds that occur between water molecules.

A falling drop of rain water acquires the spherical shape due to (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force

Description : A falling drop of rain water acquires the spherical shape due to (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force 

Last Answer : 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 : (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

A liquid disturbed by stirring comes to rest due to – (1) density (2) surface tension (3) viscosity (4) centripetal force

Description : A liquid disturbed by stirring comes to rest due to – (1) density (2) surface tension (3) viscosity (4) centripetal force

Last Answer : (3) viscosity Explanation: It happens because of viscosity. The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. It is due to friction between neighboring parcels of the fluid that are moving at different velocities.

A liquid disturbed by stirring comes to rest due to (1) density (2) surface tension (3) viscosity (4) centripetal force

Description : A liquid disturbed by stirring comes to rest due to (1) density (2) surface tension (3) viscosity (4) centripetal force

Last Answer : viscosity

The fluid property which matters for falling rain drops to acquire spherical shape is its (A) Pressure (B) Height of descend (C) Viscosity (D) Surface tension

Description : The fluid property which matters for falling rain drops to acquire spherical shape is its (A) Pressure (B) Height of descend (C) Viscosity (D) Surface tension

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Rain drops are spherical because of (A) Viscosity (B) Air resistance (C) Surface tension forces (D) Atmospheric pressure

Description : Rain drops are spherical because of (A) Viscosity (B) Air resistance (C) Surface tension forces (D) Atmospheric pressure

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if poinsettia drops leaves in December due to lack of light, how can you get it to bloom again?

Description : if poinsettia drops leaves in December due to lack of light, how can you get it to bloom again?

Last Answer : Hello, I just want to say stop loving your pointsettia. :) One mistake must make is over watering it. The pointsettia is not a plant or flowering plant. It is a tree with leaves, and does ... or humidity. I used the link below to help in my care of the Pointsettia. Genexxa Pointsettia Expert

Epoxy resin (A) Is a good adhesive (B) Is an elastomer (C) Cannot be used for surface coatings (D) Is a polyester

Description : Epoxy resin (A) Is a good adhesive (B) Is an elastomer (C) Cannot be used for surface coatings (D) Is a polyester

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When the steel bars are embedded in concrete. The concrete after setting, adheres to the surface of the bars and thus resist any force that tends to pull or push this road. The intensity of this adhesive force is called. (a) Bond stress (b) Shear stress (c) Compressive stress (d) All of these

Description : When the steel bars are embedded in concrete. The concrete after setting, adheres to the surface of the bars and thus resist any force that tends to pull or push this road. The intensity of this adhesive force is called. (a) Bond stress (b) Shear stress (c) Compressive stress (d) All of these

Last Answer : (a) Bond stress

A small drop of oil spreads over water because : (1) oil has a higher surface tension (2) water has a higher surface tension (3) oil has a higher viscosity (4) water has a higher viscosity

Description : A small drop of oil spreads over water because : (1) oil has a higher surface tension (2) water has a higher surface tension (3) oil has a higher viscosity (4) water has a higher viscosity

Last Answer : (2) water has a higher surface tension Explanation: Dispersion is used to separate a beam of white light into its constituent spectrum of colours. This phenomenon leads to rainbow.

A small drop of oil spreads over water because : (1) oil has a higher surface tension (2) water has a higher surface tension (3) oil has a higher viscosity (4) water has a higher viscosity

Description : A small drop of oil spreads over water because : (1) oil has a higher surface tension (2) water has a higher surface tension (3) oil has a higher viscosity (4) water has a higher viscosity

Last Answer : water has a higher surface tension

A farmer, in order to save one spraying operations mix herbicides, insecticide, fungicide etc. at the time of spray, to achieve this feature add a). Compatibility agents b). Spreaders c). Activators d). Adhesive

Description : A farmer, in order to save one spraying operations mix herbicides, insecticide, fungicide etc. at the time of spray, to achieve this feature add a). Compatibility agents b). Spreaders c). Activators d). Adhesive

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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

Ball pen functions on the principle of : (1) Viscosity (2) Boyle's Law (3) Gravitational force (4) Surface tension

Description : Ball pen functions on the principle of : (1) Viscosity (2) Boyle's Law (3) Gravitational force (4) Surface tension

Last Answer : (4) Surface tension Explanation: The ballpoint pen is one of the most simple and yet ubiquitous devices whose function depends on surface tension. With a pen held upright, gravity and surface tension act in concert to get ink onto the ball.

Ball pen functions on the principle of : (1) Viscosity (2) Boyle’s Law (3) Gravitational force (4) Surface tension

Description : Ball pen functions on the principle of : (1) Viscosity (2) Boyle’s Law (3) Gravitational force (4) Surface tension

Last Answer : Surface tension

Why the needle of iron swims on water surface when it is kept gently? (1) It will remain under the water, when it will displace more water than its weight (2) the density of needle is less than that of water (3) due to surface tension (4) due to its shape

Description : Why the needle of iron swims on water surface when it is kept gently? (1) It will remain under the water, when it will displace more water than its weight (2) the density of needle is less than that of water (3) due to surface tension (4) due to its shape

Last Answer : (3) due to surface tension Explanation: According to Archimedes principle and we can note that the amount of water displaced by a needle is lesser than the amount of water moved out by the needle ( ... is a contractive tendency of the surface of a liquid that allows it to resist an external force.

Why the needle of iron swims on water surface when it is kept gently ? (1) It will remain under the water, when it will displace more water than its weight (2) the density of needle is less than that of water (3) due to surface tension (4) due to its shape

Description : Why the needle of iron swims on water surface when it is kept gently ? (1) It will remain under the water, when it will displace more water than its weight (2) the density of needle is less than that of water (3) due to surface tension (4) due to its shape

Last Answer : due to surface tension

Consider the following forces: (w) Force due to tension along a string, (x) Normal force given by a surface, (y)

Description : Consider the following forces: (w) Force due to tension along a string, (x) Normal force given by a surface, (y)

Last Answer : Consider the following forces: (w) Force due to tension along a string, (x) Normal force given by a surface, (y ... C) Only x, y and z (D) All four.

Free surface of a liquid tends to contract to the smallest possible area due to force of (A) Surface tension (B) Viscosity (C) Friction (D) Cohesion

Description : Free surface of a liquid tends to contract to the smallest possible area due to force of (A) Surface tension (B) Viscosity (C) Friction (D) Cohesion

Last Answer : Answer: Option A

For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal (A) Ratio of inertial force to force due to viscosity (B) Ratio of inertial force to force due to gravitation (C) Ratio of inertial force to force due to surface tension (D) All the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity

Description : For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal (A) Ratio of inertial force to force due to viscosity (B) ... the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity

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In preference to nitrogen -oxygen mixture (present in air), a helium -oxygen mixture is used by divers in deep sea because helium (a) is less toxic than nitrogen (b) can readily mix with oxygen than nitrogen (c) is lighter than nitrogen (d) is less soluble in blood than nitrogen at high pressure under the sea

Description : In preference to nitrogen -oxygen mixture (present in air), a helium -oxygen mixture is used by divers in deep sea because helium (a) is less toxic than nitrogen (b) can readily mix with oxygen ... ) is lighter than nitrogen (d) is less soluble in blood than nitrogen at high pressure under the sea

Last Answer : Ans:(d)

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.

The hair of shaving brush clings together when removed from water due to – (1) Surface tension (2) Viscosity (3) Elasticity (4) Friction

Description : The hair of shaving brush clings together when removed from water due to – (1) Surface tension (2) Viscosity (3) Elasticity (4) Friction

Last Answer : (1) Surface tension Explanation: Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. It is revealed, for example, in the floating of ... is caused by cohesion of similar molecules, and is responsible for many of the behaviors of liquids.