CBSE · Class 11 · Physics · Mechanical Properties of FluidsThe angle of contact between pure water and clean glass is approximately equal to:
Step-by-Step Solution
For pure water and perfectly clean glass, the adhesive force is much stronger than cohesive force, causing the angle of contact to be nearly $0^\circ$.
Detailed Options Breakdown
Option : $0^\circ$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: $45^\circ$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Fluids.
Option 2: $90^\circ$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Fluids.
Option 3: $138^\circ$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Fluids.
💡 Study Guide: This question tests core syllabus concepts from Mechanical Properties of Fluids. For formulas, key summaries, and mock exam reference guides, read the full Mechanical Properties of Fluids Revision Notes.