Friction, A thin rod of length 1 m is fixed in a vertical position inside a...

A thin rod of length 1 m is fixed in a vertical position inside a train, which is moving horizontally with constant acceleration 4 m/s2. A bead can slide on the rod, and friction

What is magnetostriction?, If we have to strain a ferromagnetic crystal alo...

If we have to strain a ferromagnetic crystal along certain direction, we would change the inter atomic spacing not only along this direction but also in other direction. And hence

Complementarity principle, Complementarity principle (N. Bohr) The prin...

Complementarity principle (N. Bohr) The principle which a given system cannot exhibit wave-like and particle-like both behaviors at the similar time. i.e., certain experiments

Explain about the piezoelectric effect, Explain about the piezoelectric eff...

Explain about the piezoelectric effect. Piezoelectric effect: While crystals as quartz or tourmaline are stressed beside any pair of opposite faces, electric charges of oppo

Field-effect transistor, a)  Sketch the small-signal equivalent circuit for...

a)  Sketch the small-signal equivalent circuit for a field-effect transistor (FET) and explain how it can be deduced from the properties of the real device. b)  Draw the circuit

Modern physics., relativity and conservation law

relativity and conservation law

Black body Radiation, When Temperature increases,intensity increases,but in...

When Temperature increases,intensity increases,but in some time intensity decreases,Why?

Forces and nature,

Evaluate the angle between reflected and refracted ray, A monochromatic bea...

A monochromatic beam of unpolarised light is incident on a glass slab. The reflected ray is found to be purely plane polarized. Evaluate the angle between the reflected and the ref

Traingle Law, State Triangle Law & Derive

State Triangle Law & Derive