A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because (A) It is easier to see through the glass tube (B) Glass tube is cheaper than a metallic tube (C) It is not possible to conduct this experiment with any other tube (D) All of the above

A glass tube of smaller diameter is used while performing an experiment for the capillary rise of
water because
(A) It is easier to see through the glass tube
(B) Glass tube is cheaper than a metallic tube
(C) It is not possible to conduct this experiment with any other tube
(D) All of the above
by

1 Answer

Answer :

Answer: Option A
by

Related questions

The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately (A) 5 mm (B) 10 mm (C) 20 mm (D) 30 mm

Description : The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately (A) 5 mm (B) 10 mm (C) 20 mm (D) 30 mm

Last Answer : Answer: Option D

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

The capillary rise of mercury is maximum in glass tube of dia __________ mm. (A) 0.5 (B) 1 (C) 2 (D) 5

Description : The capillary rise of mercury is maximum in glass tube of dia __________ mm. (A) 0.5 (B) 1 (C) 2 (D) 5

Last Answer : (A) 0.5

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

Let a tin capillary tube be replaced with another tube of insufficient length then we find that water (a) Will overflow (b) Will not rise (c) Depress (d) Changes its meniscus

Description : Let a tin capillary tube be replaced with another tube of insufficient length then we find that water (a) Will overflow (b) Will not rise (c) Depress (d) Changes its meniscus

Last Answer : Ans:(b)

If the diameter of a capillary is doubled, then the rise of water in it will be – (1) two times (2) half (3) four times (4) no change

Description : If the diameter of a capillary is doubled, then the rise of water in it will be – (1) two times (2) half (3) four times (4) no change

Last Answer : (2) half Explanation: Radius of a capillary tube is inversely proportional to the height of the liquid column. So, if radius of the tube is doubled, rise of level of water will becomes half ... to flow in narrow spaces without the assistance of, and in opposition to external forces like gravity.

Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocity(B) Newton's law of viscosity is not applicable to the turbulent flow of fluidwith linear velocity distribution(C) Laminar flow of viscous liquids is involved in the lubrication of varioustypes of bearings(D) Rise of water in capillary tubes reduces with the increasing diameter ofcapillary tubes

Description : Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocit (B) Newton's law of viscosity is not applicable to the ... types of bearings (D) Rise of water in capillary tubes reduces with the increasing diameter of capillary tubes

Last Answer : (B) Newton's law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution

If the diameter of a capillary is doubled, then the rise of water in it will be (1) two times (2) half (3) four times (4) no change

Description : If the diameter of a capillary is doubled, then the rise of water in it will be (1) two times (2) half (3) four times (4) no change

Last Answer : half

Rise of liquid in a capillary tube is due to (A) Cohesion (B) Adhesion (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : Rise of liquid in a capillary tube is due to (A) Cohesion (B) Adhesion (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B

If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is (A) Same in both the tubes (B) Greater in 1 mm dia tube (C) Greater in 0.5 mm dia tube (D) Zero in both the tubes

Description : If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is (A) Same in both the tubes (B) Greater in 1 mm dia tube (C) Greater in 0.5 mm dia tube (D) Zero in both the tubes

Last Answer : (C) Greater in 0.5 mm dia tube

16. When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water. A) True B) False

Description : 16. When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water. A) True B) False

Last Answer : B

When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface. (A) Concave(B) Convex (C) Plane (D) None of these

Description : When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface. (A) Concave (B) Convex (C) Plane (D) None of these

Last Answer : Answer: Option A

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

Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm. (A) < 4 (B) > 4 (C) > 12.5 (D) < 10

Description : Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm. (A) < 4 (B) > 4 (C) > 12.5 (D) < 10

Last Answer : (C) > 12.5

The capillary rise of water (A) Depends upon the force responsible (B) Increases as the size of the soil particles increases (C) Decreases as the size of the soil particles decreases (D) Is less in wet soil than in dry soil

Description : The capillary rise of water (A) Depends upon the force responsible (B) Increases as the size of the soil particles increases (C) Decreases as the size of the soil particles decreases (D) Is less in wet soil than in dry soil

Last Answer : (A) Depends upon the force responsible

While performing an experiment to study the dependence of current on the potential difference across two ends of the resistor, a student keeps the circuit closed for a long time to measure the current and potential difference. State how the resistance of the resistor will be affected?

Description : While performing an experiment to study the dependence of current on the potential difference across two ends of the resistor, a student keeps the circuit closed for a long time to measure the current and potential difference. State how the resistance of the resistor will be affected?

Last Answer : Answer. When the circuit is closed for a long time, the flow of current will be in excess which causes unwanted heating in the resistor and changes the value of resistance.

Write any two precautions while performing the pH experiment?

Description : Write any two precautions while performing the pH experiment?

Last Answer : Answer. Wash the dropper with water after each use or use new dropper for different samples. Keep the pH paper away from chemicals while doing the experiment.

Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be (A) 40 cm(B) 52 cm (C) 64 cm (D) 76 cm

Description : Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be (A) 40 cm (B) 52 cm (C) 64 cm (D) 76 cm

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Sand consists of coarse particles of silica formed due to the disintegration of rocks (B) The grains of sand are not affected by frost (C) Sand beds are permeable and do not allow water to rise up between pores due to capillary action (D) All the above

Description : Pick up the correct statement from the following: (A) Sand consists of coarse particles of silica formed due to the disintegration of rocks (B) The grains of sand are not affected by frost (C) Sand ... and do not allow water to rise up between pores due to capillary action (D) All the above

Last Answer : Answer: Option D

What is a possible experiment I can conduct related to this topic?

Description : What is a possible experiment I can conduct related to this topic?

Last Answer : This article may give you some ideas.

Ellen decided to conduct an experiment in her mall's car park to see if shoppers would respond to a lower parking price to park in some of the under-utilized sections of the car park. Which of the following types of market research Ellen is using? A. Exploratory B. Causal C. Descriptive D. Investigative E. Behavioral

Description : Ellen decided to conduct an experiment in her mall's car park to see if shoppers would respond to a lower parking price to park in some of the under-utilized sections of the car park. Which of ... research Ellen is using? A. Exploratory B. Causal C. Descriptive D. Investigative E. Behavioral

Last Answer : B. Causal

The coefficient of viscosity may be determined by (A) Capillary tube method (B) Orifice type viscometer (C) Rotating cylinder method (D) All of these

Description : The coefficient of viscosity may be determined by (A) Capillary tube method (B) Orifice type viscometer (C) Rotating cylinder method (D) All of these

Last Answer : Answer: Option D

Digital transmission provides a higher level of signal quality than analog transmission because A. repeaters regenerate digital pulses and remove distorstion B. digital signals are easier to sample than analog signals C. digital signals are smaller than analog signals and cannot easily be distorted D. analog signals are continuous and not easily distorted.

Description : Digital transmission provides a higher level of signal quality than analog transmission because A. repeaters regenerate digital pulses and remove distorstion B. digital signals are easier to sample than ... and cannot easily be distorted D. analog signals are continuous and not easily distorted.

Last Answer : A. repeaters regenerate digital pulses and remove distorstion

It is much easier for a small animal to run uphill than for a large animal, because (a) small animals have a lower O2 requirement (b) the efficiency of muscles in large animals is less than in the small animals (c) it is easier to carry a small body weight (d) smaller animals have a higher metabolic rate.

Description : It is much easier for a small animal to run uphill than for a large animal, because (a) small animals have a lower O2 requirement (b) the efficiency of muscles in large animals is less than in the ... (c) it is easier to carry a small body weight (d) smaller animals have a higher metabolic rate.

Last Answer : (d) smaller animals have a higher metabolic rate.

In a constant level tube, size of the bubble remains constant because upper wall is (A) Of relatively larger radius (B) Of relatively smaller radius (C) Flat (D) Convex downwards

Description : In a constant level tube, size of the bubble remains constant because upper wall is (A) Of relatively larger radius (B) Of relatively smaller radius (C) Flat (D) Convex downwards

Last Answer : (A) Of relatively larger radius

A tube mill as compared to a ball mill (A) Employs smaller balls (B) Gives finer size reduction but consumes more power (C) Has larger length/diameter ratio (>2 as compared to 1 for ball mill) (D) All (A), (B) and (C)

Description : A tube mill as compared to a ball mill (A) Employs smaller balls (B) Gives finer size reduction but consumes more power (C) Has larger length/diameter ratio (>2 as compared to 1 for ball mill) (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Tube mill compared to ball mill (A) Produces finer products (B) Is long in comparison with its diameter (C) Uses smaller balls (D) All (A), (B) & (C)

Description : Tube mill compared to ball mill (A) Produces finer products (B) Is long in comparison with its diameter (C) Uses smaller balls (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

A liquid flows through a capillary tube. Then the velocity of the liquid is (a) Maximum at the walls of the tubs (b) Constant at all points in the cross section of the tube (c) Maximum along the axis of the tube (d) Independent of the pressure-head

Description : A liquid flows through a capillary tube. Then the velocity of the liquid is (a) Maximum at the walls of the tubs (b) Constant at all points in the cross section of the tube (c) Maximum along the axis of the tube (d) Independent of the pressure-head

Last Answer : Ans:(c)

The principle of Professional behavior requires a CPA to: a. Perform professional services with due care, competence and diligence. b. Be straightforward and honest in performing professional servicesc. Act in a manner consistent with thegood reputation of the professionand refrain from any conduct whichmight bring discredit to theprofession.d. Be fair and should not allow prejudice orbias, conflict of interest or influence ofothers to override objectivity or affecthis professional or business judgments.

Description : The principle of Professional behavior requires a CPA to: a. Perform professional services with due care, competence and diligence. b. Be straightforward and honest in performing professional ... or influence of others to override objectivity or affect his professional or business judgments.

Last Answer : Act in a manner consistent with the good reputation of the profession and refrain from any conduct which might bring discredit to the profession

The principle of professional behavior requires a CPA to a. Be straightforward and honest in performing professional services. b. Perform professional services with due care, competence and diligence.c. Be fair and should not allow prejudice or bias, conflict of interest or influence of others to override objectivity. d. Act in a manner consistent with the good reputation of the profession and refrain from any conduct which might bring discredit to the profession

Description : The principle of professional behavior requires a CPA to a. Be straightforward and honest in performing professional services. b. Perform professional services with due care, competence and diligence. ... of the profession and refrain from any conduct which might bring discredit to the profession

Last Answer : Act in a manner consistent with the good reputation of the profession and refrain from any conduct which might bring discredit to the profession

Higher automation leads to lower production costs and has what effect on repositioning a product on the perceptual map? a. makes it more difficult and expensive b. makes it easier and cheaper c. no effect d. eliminates repositioning

Description : Higher automation leads to lower production costs and has what effect on repositioning a product on the perceptual map? a. makes it more difficult and expensive b. makes it easier and cheaper c. no effect d. eliminates repositioning

Last Answer : a. makes it more difficult and expensive

how,he speed of sound is about 3.4 × 102 meters per second. Mark is performing a science experiment and he needs to know how far sound travels in 3 × 1010 seconds. If Mark uses a calculator to solve this problem, how will the calculator show the answer?

Description : how,he speed of sound is about 3.4 × 102 meters per second. Mark is performing a science experiment and he needs to know how far sound travels in 3 × 1010 seconds. If Mark uses a calculator to solve this problem, how will the calculator show the answer?

Last Answer : 10200000000000

How do scientists ensure the validity of their conclusions when performing an experiment?

Description : How do scientists ensure the validity of their conclusions when performing an experiment?

Last Answer : What is the answer ?

The need of objective observation is Options: A) In performing experiment B) In research C) In normal behaviour D) In all the situations

Description : The need of objective observation is Options: A) In performing experiment B) In research C) In normal behaviour D) In all the situations

Last Answer : D) In all the situations

Is there any metallic substance that does not conduct electricity ?

Description : Is there any metallic substance that does not conduct electricity ?

Last Answer : Characteristics of metallic materials are: jingle when hit, can be beaten into thin sheets , conductor of electricity. Therefore there is no metal that does not conduct electricity. Because if electricity is not transmitted it will not be considered as metal

Solids which conduct electricity at higher temperature but not at lower temperature are called (1) super-conductor (2) metallic-conductor (3) semi-conductor (4) insulator

Description : Solids which conduct electricity at higher temperature but not at lower temperature are called (1) super-conductor (2) metallic-conductor (3) semi-conductor (4) insulator

Last Answer : (3) semi-conductor Explanation: Semiconductors are insulators at low temperatures and reasonably good conductors at higher temperatures. As temperature increases, the semiconductor material becomes a better and better conductor.

Solids which conduct electricity at higher temperature but not at lower temperature are called (1) super-conductor (2) metallic-conductor (3) semi-conductor (4) insulator

Description : Solids which conduct electricity at higher temperature but not at lower temperature are called (1) super-conductor (2) metallic-conductor (3) semi-conductor (4) insulator

Last Answer : semi-conductor

Pick up the incorrect statement from the following: (A) The smaller the size of the pores, the higher the water can rise above the water table (B) Below the water table, the pore water may be static (C) The hydrostatic pressure depends on the depth below the water level (D) None of these

Description : Pick up the incorrect statement from the following: (A) The smaller the size of the pores, the higher the water can rise above the water table (B) Below the water table, the pore water may be static (C) The hydrostatic pressure depends on the depth below the water level (D) None of these

Last Answer : Answer: Option D

A special type of transmission line that consist of conducting metallic tube through which high frequency electromagnetic energy is propagated

Description : A special type of transmission line that consist of conducting metallic tube through which high frequency electromagnetic energy is propagated

Last Answer : waveguide

A student is to conduct an experiment to show CO2 is released during respiration. List two precautions that he/she must take for obtaining correct observation. -Science

Description : A student is to conduct an experiment to show CO2 is released during respiration. List two precautions that he/she must take for obtaining correct observation. -Science

Last Answer : Two precautions to be taken are: (i) Germinating seeds (living) should be used. (ii) The experiment set up must be air-tight.

In which year did A. Michelson and E. Morley conduct their experiment to verify the existence of ether?

Description : In which year did A. Michelson and E. Morley conduct their experiment to verify the existence of ether?

Last Answer : Answer: 1887.

You conduct a chance experiment many times and record the outcomes. How are these outcomes related to the probability of a certain event occurring?

Description : You conduct a chance experiment many times and record the outcomes. How are these outcomes related to the probability of a certain event occurring?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

A student is to conduct an experiment to show CO2 is released during respiration. List two precautions that he/she must take for obtaining correct observation.

Description : A student is to conduct an experiment to show CO2 is released during respiration. List two precautions that he/she must take for obtaining correct observation.

Last Answer : Answer. Two precautions to be taken are: (i) Germinating seeds (living) should be used. (ii) The experiment set up must be air-tight.

When buying a gift for a child's birthday party, are you more likely to err on the side of a smaller, cheaper gift or the side of a larger, more expensive gift?

Description : When buying a gift for a child's birthday party, are you more likely to err on the side of a smaller, cheaper gift or the side of a larger, more expensive gift?

Last Answer : I’m more likely to err on the side of a cheaper but useful toy – something developmental, gender-neutral and something my kids enjoyed.

In centrifugal pump installation, (A) Pump is properly primed before starting (B) The diameter of the pipe at inlet as well as at outlet, is kept smaller than the delivery pipe (C) The motor may burn out if it is started with empty delivery pipe and with open gate valve (D) All the above

Description : In centrifugal pump installation,  (A) Pump is properly primed before starting  (B) The diameter of the pipe at inlet as well as at outlet, is kept smaller than the delivery pipe  (C) The ... out if it is started with empty delivery pipe and with open gate valve  (D) All the above 

Last Answer : (D) All the above 

Domestic refrigerator working on vapour compression cycle uses the following type of expansion device (a) electrically operated throttling valve (b) manually operated valve (c) thermostatic valve (d) capillary tube

Description : Domestic refrigerator working on vapour compression cycle uses the following type of expansion device (a) electrically operated throttling valve (b) manually operated valve (c) thermostatic valve (d) capillary tube

Last Answer : Ans: d

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)

Capillary tube method of viscosity measurement is based on the (A) Hagen-Poiseuille’s equation (B) Stoke's law (C) Navier-stokes equation (D) None of these

Description : Capillary tube method of viscosity measurement is based on the (A) Hagen-Poiseuille’s equation (B) Stoke's law (C) Navier-stokes equation (D) None of these

Last Answer : (A) Hagen-Poiseuille’s equation