Category: Physics Faqs

Angular acceleration is the rate of change of angular velocity or speed of a body moving along a circular path. These interview questions will also help in your viva(orals)

Convection is the process of transferring heat by movement of heated fluid such as water or air.  In this process, the heated fluid expands, and gravity pulls the denser masses under them thus forcing them into motion. One good example is a draft of lamps and stoves.

Velocity of sound depends on velocity and density of the medium on which it travels.  It varies directly as the square root of elasticity and inversely as the square root of the density.

Neutrino is a small, tiny elementary particle which carries no electrical charge which means it is not affected by electro-magnetic forces, and travels almost the speed of light and passes through ordinary matter without making any interaction.

A Pascal law states that when you apply force at one point on liquid it will transmit equal force from one location to another within the liquid.

A discrete bundle of electromagnetic light or energy, which always remains in motion is referred as photon.

Dark matter is an invisible matter in the space that can hold the stars into the galaxy.  They have no effect of electromagnetic force on it, which means it does absorb, reflect or emit light that makes them practically invisible.

Uncertainty principle tells that the momentum and position of a particle cannot be measured precisely.

Quantum tunnelling is the process where the particle passes through an obstruction or barrier to reach at another end.  It is referred as tunnelling as the particle as “dug” out the way through the potential barrier.