Properties of Solids & Liquids (KVPY Stream-SB-SX Physics): Questions 11 - 12 of 12
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 250 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.
Rs. 200.00 or
Question number: 11
» Properties of Solids & Liquids » Surface Energy and Surface Tension
A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 60 cm below the surface. Surface tension of water is . The diameter of the hole is,
Question number: 12
» Properties of Solids & Liquids » Application of Surface Tension
Two circular glass plates each of radius R = 15 cm are pressed together with a liquid film of thickness . Assuming that the liquid completely wets the glass plates, compute the force normal to plates required to pull them apart. S. T. of liquid = 0.070 N/m.