Gravitation — Physics STD 11 Science — Question

Oxygen and hydrogen are at the same temperature T. What is the ratio of kinetic energies of oxygen molecule and hydrogen molecule when oxygen is 16 times heavier than hydrogen?

A laser light is focused by a converging lens. Will there be a significant chromatic aberration?

Write the expression for distance covered in n^th the second by a uniformly accelerated body.

Why is it easier to push a heavy block from behind than to press it on the top and push?

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative:
Work done by an applied force on a body moving on a rough horizontal plane with uniform velocity.

The rate of radiation from a body depends on which power of the body's absolute temperature?

The two objects of similar geometric shape, one of which is made of aluminium and the other of iron,whose moment of inertia will be greater relative to the geometric axis and why?

When the size of a soap bubble is increased by pushing more air in it, the surface area increases. Does it mean that the average separation between the surface molecules is increased?

What is the order of strain within elastic limit?

Under the condition is the minimum restoring force on a particle moving in simple harmonic motion?