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Class 11 Physics (Part Ii) Chapter 11 Mechanical Properties Of Solids Quiz 8 (10 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. The property which resists the relative motion between two surfaces in contact is

Correct Answer: D) Friction.

2. Air is more elastic than water.

Correct Answer: B) False.

3. The property of a material which enables it to resist plastic deformation is .....

Correct Answer: C) Hardness.

4. In plastic flow region for the stress-strain curve for a wire .....

Correct Answer: D) A small stress brings about a large change in strain.

5. 16 cm3 of water flows per second through a capillary tube of radius a cm and of length 'l' cm when connectedto a pressure head of h cm of water. If a tube of the same length and radius a/2 cm is connected to the samepressure head, the quantity of water flowing through the tube per second will be(in cc):-

Correct Answer: C) 1.

6. If the % elongation of a sample is found to be 10

Correct Answer: A) Material is ductile.

7. Escape velocity is independent on

Correct Answer: A) The mass of the object to be projected.

8. The SI unit of longitudinal strain is:

Correct Answer: D) Unitless.

9. A property is .....

Correct Answer: A) A way to describe matter.

10. The modulus of elasticity corresponding to change in area or shape is called as .....

Correct Answer: C) Modulus of rigidity.

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