Why Do Glass Plates with Water Not Separate Under Weight but Slide Easily?

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Two glass plates with a thin film of water trapped between them demonstrated that they did not separate until weights of 2-3 kg were applied, highlighting the role of surface tension. When the plates were slid, they moved easily due to the liquid film reducing friction. The first observation can be explained by surface tension, which is influenced by intermolecular forces, including adhesive and cohesive forces. This phenomenon is also related to capillary action. The discussion emphasizes the balance between surface tension and friction in fluid dynamics.
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1. I took two glass plates with a thin film of water trapped in it. One of plates had hook in it. Weights were hung in it. I found that these plates didn't separate until weights of about 2-3 kg was applied.
2.But if slided, it moved easily.
I can explain observation no. 2. It is because the liquid film reduces friction.
Can anyone explain observation no. 1?
 
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The first case is due to surface tension.a situation which is caused due to the intermolecular forces such as adhesive and cohesive forces.It is responsible for holding the water or any other.another example is the capillary action
 
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