Units and Measurements — Physics STD 11 Science — Question

What is the value of y for monoatomic and diatomic gases?

When the skeleton of an elephant and the skeleton of a mouse are prepared in the same size, the bones of the elephant are shown thicker than those of the mouse. Explain why the bones of an elephant are thicker than proportionate. The bones are expected to withstand the stress due to the weight of the animal.

A wire is stretched by a certain amount under a load. If the load and radius both are increased to four times, find the stretch caused in the wire.

If it were possible for a gas in a container to reach the temperature 0K, its pressure would be zero. Would the molecules not collide with the walls? Would they not transfer momentum to the walls?

What is called triple-points?

What should be the value of Reynolds number for streamline fluid flow in a narrow tube?

Explain this statement clearly:
“To call a dimensional quantity ‘large’ or ‘small’ is meaningless without specifying a standard for comparison”. In view of this, reframe the following statements wherever necessary:

1. Atoms are very small objects
2. A jet plane moves with great speed
3. The mass of Jupiter is very large
4. The air inside this room contains a large number of molecules
5. A proton is much more massive than an electron
6. The speed of sound is much smaller than the speed of light.

At what point the velocity and acceleration are zero in S.H.M?

An electrolysis experiment is stopped and the battery terminals are reversed:

1. The electrolysis will stop.
2. The rate of liberation of material at the electrodes will increase.
3. The rate of liberation of material will remain the same.
4. Heat will be produced at a greater rate.

A satellite is orbiting around the Earth with a speed v. To make the satellite escape, what is the minimum percentage increase in its speed?