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Hertz; Hz (after H. Hertz, 1857-1894)
The derived SI unit of frequency, explained as a frequency of 1 cycle per s; therefore it has units of s-1.
A small spool and a large spool Using nails for axles fasten a large spool and a smaller spool to a block of wood. Slip a rubber band in excess of both spools. Turn the larger
Harmonicmotion is considered simple if it is undamped, i.e. if it keep on to oscillate uniformly over time. Of particular interest are the frequency f or also period T of the oscil
How is plastic fibre material used in optical fibres? Plastic fibre: Plastic fibre is classically made of plastic. Such are low cost optical fibres. They have a huge NA and
In the presence of electronic, ionic and dipolar polarization mechanisms, t he average induced dipole moment per molecule will be the sum of all the contributions in terms of the
Q. Why the centre of Newton's rings pattern appears dark? The thickness of the air film becomes zero at the point of contact of lens L with glass plate P. Therefore there is no
De Broglie wavelength (L. de Broglie; 1924) The prediction which particles also have wave characteristics, where the effective wavelength of an element would be inversely propo
Fibre optics: Light travels in straight lines, even though lenses and mirrors can deflect it, light still travels in a straight line between optical devices. This is fine for
Define the Tea in Thermos? One liter of tea at 90° C is poured keen on a vacuum-insulated container (thermos). The surface area of the thermos walls A=600 cm 2 . The volume am
Break a stick with inertia Secure a small stick 18 to 20 cm in length. If no other stick is available a lead pencil will do. Fold a newspaper and place it near the edge of a ta
is there any Law of Physics acting in a weighted object placed in a corrugated paper and the paper can actually support it well thanky you :)
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