Which of the following is correct about contact force between two surfaces?

It is electromagnetic force.

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It is always perpendicular to the surface.

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It is always parallel to the surface.

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It is always less than the weight of the body.

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Solution

The correct option is A It is electromagnetic force.
Contact force between two surfaces is electromagnetic in nature.

Contact force is not always parallel or perpendicular to the surface.

Contact force may be larger than the weight of the body.

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Similar questions

Which of the following is/are true about frictional force?

1. It depends on the nature of the surface in contact.

2. It always opposes relative motion between two objects.

3. It is a contact force.

4. It is a non- contact force.

Which of the following is/are true about the frictional force?

1. It acts between all moving objects.

2. It always opposes relative motion between two objects.

3. It is a contact force.

4. It is a non- contact force.

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