SCIENCE

Under : SCIENCE    Posted On :  06.04.2017 01:53 pm

The phenomena of reflection, refraction, interference, diffraction are common to both transverse waves and longitudinal waves. But the transverse natu....

Under : SCIENCE    Posted On :  06.04.2017 01:41 pm

Sound is propagated in the form of waves. Sound produced in an adjoining room reaches us after bending round the edges of the walls. ....

Under : SCIENCE    Posted On :  06.04.2017 01:31 pm

When two or more waves simultaneously pass through the same medium, each wave acts on every particle of the medium, as if the other waves are not pres....

Under : SCIENCE    Posted On :  06.04.2017 12:43 pm

When a stone is dropped in a still water, waves spread out along the surface of water in all directions with same velocity. Every particle on the surf....

Under : SCIENCE    Posted On :  06.04.2017 12:31 pm

Lord Rayleigh was the first to deal with scattering of light by air molecules. The scattering of sunlight by the molecules of the gases in Earth�s a....

Under : SCIENCE    Posted On :  06.04.2017 12:10 pm

Any theory regarding propagation of light must explain the properties of light. Since, light is a form of energy, it is transferred from one place to ....

Under : SCIENCE    Posted On :  06.04.2017 12:07 pm

When white light falls on a prism, placed in a spectrometer, the waves of different wavelengths are deviated to different directions by the prism. The....

Under : SCIENCE    Posted On :  06.04.2017 12:02 pm

The existence of electromagnetic waves was confirmed experimentally by Hertz in 1888. This experiment is based on the fact that an oscillating electri....

Under : SCIENCE    Posted On :  06.04.2017 12:01 pm

In an electromagnetic wave, electric and magnetic field vectors are at right angles to each other and both are at right angles to the direction of pro....

Under : SCIENCE    Posted On :  06.04.2017 11:59 am

The phenomenon of Faraday's electromagnetic induction concludes that a changing magnetic field at a point with time produces an electric field at that....

Under : SCIENCE    Posted On :  06.04.2017 11:50 am

A choke coil is an inductance coil of very small resistance used for controlling current in an a.c. circuit.....

Under : SCIENCE    Posted On :  06.04.2017 11:49 am

Resistor, inductor and capacitor in series....

Under : SCIENCE    Posted On :  06.04.2017 11:46 am

As we have seen earlier a rotating coil in a magnetic field, induces an alternating emf and hence an alternating current. Since the emf induced in the....

Under : SCIENCE    Posted On :  06.04.2017 11:26 am

The electric power generated in a power station situated in a remote place is transmitted to different regions for domestic and industrial use.....

Under : SCIENCE    Posted On :  06.04.2017 11:24 am

Transformer is an electrical device used for converting low alternating voltage into high alternating voltage and vice versa. It transfers electric po....

Under : SCIENCE    Posted On :  06.04.2017 11:19 am

When a conductor in the form of a disc or a metallic plate as shown in Fig 4.14, swings between the poles of a magnet, eddy currents are set up inside....

Under : SCIENCE    Posted On :  06.04.2017 11:16 am

AC generator (Alternator) - Three phase....

Under : SCIENCE    Posted On :  06.04.2017 11:10 am

1. Emf induced by changing the magnetic induction 2. Emf induced by changing the area enclosed by the coil 3. Emf induced by changing the orientatio....

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