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LENARD ATOMIC MODEL:
Lenard suggested that the atom must have a lot of empty in it.
Lenard's model of an atom could not explain about the stability and mass of an atom .
1) Clean coal technology describes new electricity generation processes that are expected to have high efficiencies, be able to minimise environmental impacts, including SO 2 , NOx
Q. A screen is placed 90 cm from an object. The image of the object on the screen is formed by a convex lens at two different locations separated by 20cm. Determine the focal lengt
For germanium the forbidden gap is (A) 0.15ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For germanium the forbidden gap is 0.7ev.
why the shape of rainbow is ark?
What do you mean by the magnetic moment of a semi circular magnet of radius ‘r' and pole strength ‘m'
The water level in a tank is 20 m above the ground. A hose is connected to the bottom of the tank, and the nozzle at the end of the hose is pointed straight up. The tank is at sea
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What do you mean by photo electric effect? Show the laws of photoelectric effect. Illustrate these laws using Einstein's equation of photo electric effect?
Power is to be supplied from a source whose resistance is 20 K ? to a load of 100 ?. Would you consider it as a constant voltage source or current source? Explain. Ans. G
Explain the absorption and emission transitions of A and B coefficients of Einstein. Assume that N 1 and N 2 be the number of atoms per unit volume along with energy E 1 and
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