Units and Measurements — Physics STD 11 Science — Question

Write the dimensional formula corresponding to :

1. Photon.
2. Calorie.

State the boundary conditions of the dimensional equation.

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 a man in lifting a bucket out of a well by means of a rope tied to the bucket.

In a real gas the internal energy depends on temperature and also on volume. The energy increases when the gas expands isothermally. Looking into the derivation of C_P - C_v = R, find whether C_P - C_v will be more than R, less than R or equal to R for a real gas.

A truck and a car are moving on a straight road with equal kinetic energy. If both engines are switched off simultaneously which one will stop at a shorter distance?

What is the moment of inertia of a sphere of mass 20kg and radius m about its diameter?

The density of a rod AB continuously increases from A to B. Is it easier to set it in rotation by clamping it at A and applying a perpendicular force at B or by clamping it at B and applying the force at A?

Does the speed of a satellite remain constant in a particular orbit (circular)?

Can you, have an AG series circuit in which there is. a phase difference of 180° between the emf and the current? 120°?