Mechanics and Properties of Matter MCQs with Answers PDF Download – Test 5

MCQ 21: Period of simple harmonic motion of a spiral spring or elastic thread is given by:

1. T = 2π × (extension produced/gravitational field strength)
2. T = 2π × (extension produced/√(gravitational field strength))
3. T = 2π × (√(extension produced)/gravitational field strength)
4. T = 2π × √(extension produced/gravitational field strength)

MCQ 22: In order to slip one surface over another, maximum frictional force has to be overcome, this maximum frictional force between the two surfaces is also known as:

1. kinetic frictional force
2. maximal frictional force
3. limiting frictional force
4. resisting force

MCQ 23: Van der Waals derived an expression for the ‘pressure defect’, if the observed pressure is denoted as ‘p’ and volume is denoted as ‘V’, the gas pressure in the bulk of the gas is equal to::

1. p + a/V; where a: constant for the particular gas
2. p + a/(V²); where a: constant for the particular gas
3. p + (a × V); where a: constant for the particular gas
4. p + (a × V²); where a: constant for the particular gas

MCQ 24: "Upthrust = Weight of the liquid displaced" is known as:

1. Bernoulli's Principle
2. Archimedes' Principle
3. Pascal's Law
4. Coulomb's law

MCQ 25: Assuming uniform density of the core, the acceleration due to gravity below the Earth's surface is:

1. inversely proportional to the square of the distance from the center of the Earth
2. inversely proportional to the distance from the center of the Earth
3. directly proportional to the square of the distance from the center of the Earth
4. directly proportional to the distance from the center of the Earth