| ⇦ | 
| ⇨ |
The surface tension of a liquid is 5 newton per metre. If a film is held on a ring of area 0.02 metre², its surface energy is about
Options
(a) 5×10⁻² J
(b) 2.5×10⁻² J
(c) 2×10⁻¹ J
(d) 3×10⁻¹ J
Correct Answer:
2×10⁻¹ J
Explanation:
Surface tension = Surface energy/Surface Area
Since the film has two surface
.·. Surface energy = (5 Nm⁻¹) (2 x 0.02 m²) = 2 x 10⁻¹ J.
Related Questions: - Two bodies of mass 1 kg and 3 kg have positive vectors i + 2j + k and -3i -2j + k
- Which one of the following is not a unit of young’s modulus?
- The work done in which of the following processes is equal to the change in internal energy
- The displacement of an object attached to a spring and executing simple harmonic
- An inductor is connected to an a.c. source when compared to voltage,
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two bodies of mass 1 kg and 3 kg have positive vectors i + 2j + k and -3i -2j + k
- Which one of the following is not a unit of young’s modulus?
- The work done in which of the following processes is equal to the change in internal energy
- The displacement of an object attached to a spring and executing simple harmonic
- An inductor is connected to an a.c. source when compared to voltage,
Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply