Waves — Physics STD 11 Science — Question

Which of the following examples represent (nearly) simple harmonic motion and which represent periodic but not simple harmonic motion?
The rotation of earth about its axis.

The electrochemical equivalent of a material depends on:

1. The nature of the material.
2. The current through the electrolyte containing the material.
3. The amount of charge passed through the electrolyte.
4. The amount of this material present in the electrolyte.

A gas is kept in a rigid cubical container. If a load of 10kg is put on the top of the container, does the pressure increase?

A shell is fired from a cannon and it explodes at the top. What will be the change in its momentum and kinetic energy?

A LASER is a source of very intense, monochromatic, and unidirectional beam of light. These properties of a laser light can be exploited to measure long distances. The distance of the Moon from the Earth has been already determined very precisely using a laser as a source of light. A laser light beamed at the Moon takes 2.56s to return after reflection at the Moon’s surface. How much is the radius of the lunar orbit around the Earth?

Will the potential energy of atoms increases or decreases when a wire is stretched?

Two circular loops are placed with their centres separated by a fixed distance. How would you orient the loops to have:

1. The largest mutual inductance.
2. The smallest mutual inductance?

Faraday constant:

1. Depends on the amount of the electrolyte.
2. Depends on the current in the electrolyte.
3. Is a universal constant.
4. Depends on the amount of charge passed through the electrolyte.

Write an expression for distance covered in n^th second for a uniformly accelerated motion.