MEDIUM
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Which one of the following statements is incorrect regarding the effect of detergent on the surface tension of water?
30% studentsanswered this correctly
Important Questions on Experiments Related to Properties of Solids and Fluids
MEDIUM
To calculate the surface tension of water, a student wants to find the height of the water in the capillary. He has set the apparatus for this as shown below.
Which one of the following is the correct formula for the calculation of this height?
EASY
To study the effect of detergent on the surface tension of water, the observations for the height of the solution without detergent and with detergent are to be taken. Which of the following is a necessary precaution for this?
MEDIUM
Which of the following is not a cause of possible error in finding the change in height of the water if detergent is added to it?
EASY
While studying the effect of detergent on the surface tension of water, the amount of the same detergent is increased in the solution and observations are taken again. How the height of the solution will change inside the capillary?
MEDIUM
The solutions of four detergents P, Q, R and S are taken in separate beakers. The following readings are taken by a student for the capillary tubes dipped in these solutions.
| Solution | Reading for the water level outside the capillary | Reading for the water level outside the capillary |
| P | ||
| Q | ||
| R | ||
| S |
Which one is the best detergent?
MEDIUM
A student has taken two different sets of observations for the height of water with the capillaries of different radii. The two heights are and and the two radii are and . He forgot to write these observations in the table properly. If and are the radii and heights corresponding to two capillaries then which one of the following statements is correct?
