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To develop the correct mathematical explanation of the distribution of radiated energy of a blackbody with respect to wavelength for a given temperature.
Planck found it essential to suppose that the molecular oscillators of the blackbody emitted and absorbed:
Ans- Radiant energy in discrete units or quanta
Ohm''s law establishment using drift of charge carriers
Name any two elementary particles which have almost infinite life time? Electron and proton have almost infinite life time.
(a) Convert the network to the left of terminals AB in Figure 13.60 to an equivalent Thévenin circuit by initially converting to a Norton equivalent network. (b) Determine the
metre; meter; m The basic SI unit of length, explained as the length of the path traveled through light in vacuum throughout a period of 1/299 792 458 s.
Relativistic Length Contraction The animations that were given below depict these phenomena of length contraction. In every animation a spaceship is moving past Earth at a high
A 10 volt battery connected to a capacitor delivers a charge of 0.5 coulombs. The capacitance of the capacitor is: a) 2 x 10 -2 farads b) 5 x 10 -2 farads c) 2 fa
A single fixed pulley Set up a one fixed pulley as shown in the diagram below. By means of weights see how much force is needed to lift weights of 25, 50, 75, 100 and 200 g. Ca
Consider a current loop where the circulating current is I. This may be for an example of a coil carrying a current. We will assume that the current loop lies within a single plane
The index of refraction of a particular medium is nearly the same for all wavelengths hence we often associate a single value the average value of the index of refraction to the me
Photons and gravity : It is observed that light is affected by gravity. We can recognize the gravitational behaviour of light from the fact that although a photon has zero rest mas
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