Physics Test - ...

A body constrained to move in y-direction is subjected to a force \(F=2 \hat{i}+15 \hat{j}+6 \hat{k} N\). The work done by this force in moving the body through a distance of 10 m along the y-axis is

If there is a straight line parallel to volume axis in a P-V diagram, then it is an ____ graph.

A gas is taken through a number of thermodynamic states. What happens to its specific heat?

The figure below shows the P-V diagram for a fixed mass of an ideal gas undergoing cyclic process ABCA. AB represents an isothermal process.

Which of the following graphs represents the P-T diagram of the cyclic process?

During the adiabatic expansion of 2 moles of a gas, the internal energy was found to have decreased by 100 J. The work done by the gas in this process is

A lens produces an image of an object on a screen. If a slab of refractive index 'n' is placed between the lens and the screen, the screen has to be moved behind by distance 'd'. The thickness of the slab is

A laser beam is used for locating distant objects because it

The light gathering power of a camera lens depends on

To get three images of a single object, one should have two plain mirrors at an angle of:

A ray falls on a prism ABC (AB = BC) and travels as shown in figure. The least value of refractive index of material of the prism, should be: