PART - 2 CH - 8 Mechanical Properties of Solids — Physics STD 11 Science — Question

Which of the following examples represent (nearly) simple harmonic motion and which represent periodic but not simple harmonic motion?General vibrations of a polyatomic molecule about its equilibrium position.

What is the nature of ultrasonic waves and what is their frequency?

Write down characteristics of elastic collision.

Which gas monatomic and diatomic, will have greater specific heat at room temperature?

A capacitor with stored energy 4.0J is connected with an identical capacitor with no electric field in between. Find the total energy stored in the two capacitors.

Is the large brake on a bicycle wheel more effective than a small one? Explain.

Consider the self-inductance per unit length of a solenoid at its centre and that near its ends. Which of the two is greater?

How does the viscous force between two layers of a liquid depend upon the relative velocity between two layers?

A body of mass 2kg initially at rest moves under the action of an applied horizontal force of 7N on a table with coefficient of kinetic friction = 0.1. Compute the: Change in kinetic energy of the body in 10s.

Pressure is defined as:

1. Momentum per unit area.
2. Momentum per unit area per unit time.
3. Momentum per unit volume.
4. Energy per unit volume.