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Huygens' construction; Huygens' principle (C. Huygens):
The mechanical propagation of any wave (exclusively, of light) is equal to supposing that each point on the wavefront behaves as point source of wave emission.
Photoelectric electricity is produced directly from solar energy when which following are absorbed in a semiconductor to create an electric current? a) Protons b) Electron
Right hand Rule: James clark Maxwell proposed a rule to search the direction of magnetic lines of force around a wire carrying current. This rule states. "If a current carr
An alternating voltage is triangular in shape, rising at a constant rate to a maximumof 300V in 8ms and then falling to zero at a constant rate in 4ms. The negative half cycle
Q. Write down the Schrodinger's time independent wave equation for a free particle confined in one dimensional box of size a. Obtain eigen values and normalized wave functions fo
Explain, with the help of a circuit diagram, how the thickness of depletion layer in a p-n junction diode alters when it is forward biased. In the following circuits which one of t
Write down the expression for deviation produced by a thin prism also describe dispersive power.
Reflection of a Pulse at a Free End Let's assume a pulse moving by a medium - perhaps by a rope or a slinky. What happens to the pulse while it reaches the end of in which medi
The constant potential difference across a 2 ohm resistor is 20 volts. How many watts of power are dissipated by this resistor? Ans: 200 watts of power are dissipated throug
Ferromagnetic substances: on the basis of domain theory A. 1. In a ferro magnetic substance, large no. of domains occur. 2. The direction of magnetisation with in a
sir, what are the apparatus required for the magnometer experiment and how to do it.TO finnd the magnetic materials. wsihing an speedy reply
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