JEE Exam  >  JEE Questions  >  When liquid medicine of density ρ is to p... Start Learning for Free
When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.
Q. If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) is
  • a)
    2π rT
  • b)
    2π RT
  • c)
    2πr2T/R
  • d)
    2πr2T/r
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
When liquid medicine of density ρ is to put in the eye, it is done...
The vertical force due to surface tension

View all questions of this test
Explore Courses for JEE exam

Similar JEE Doubts

When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer?
Question Description
When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer?.
Solutions for When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice When liquid medicine of density ρ is to put in the eye, it is done with the help of a dropper. As the bulb on the top of the dropper is pressed, a drop forms at the opening of the dropper. We wish to estimate the size of the drop. We first assume that the drop formed at the opening is spherical because that requires a minimum increase in its surface energy. To determine the size, we calculate the net vertical force due to the surface tension T when the radius of the drop is R. When this force becomes smaller than the weight of the drop, the drop gets detached from the dropper.Q.If the radius of the opening of the dropper is r, the vertical force due to the surface tension on the drop of radius R (assuming r << R) isa)2π rTb)2π RTc)2πr2T/Rd)2πr2T/rCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev