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Rayleigh criterion; resolving power:
A criterion for finding out how finely a set of optics might be able to distinguish. It start with the supposition that central ring of one image must fall on the primary dark ring of the other; for an objective lens along with diameter d and employing light along with a wavelength lambda (usually taken 560 nm), the resolving power is approximately given trhough 1.22 lambda/d.
In thermodynamics term what is the meaning of the following terms? a) closed and Open systems b) Extensive and Intensive properties.
What do you mean by Doppler effect? Derive a mathematical expression for the apparent frequency of a note, when source of sound and observer are approaching each other.
Explain 'drift velocity of free electrons'? Derive Ohm's law on the basis of the theory of electron drift.
what is motion
In an ideal transformer , the no. of turns in primary & secondary are 200 & 1000 respectively .If power input to primary is 10kW at 200V.Calculate i)output voltage ii)current in
zeener diode definatoin
The mass of 1 mole of electrons is: (1) 9.1x 10 -28 g (2) 1.008mg (3) 0.55mg (4) 9.1x 10 -27 g Ans: (3)0.55mg
The nuclei have been separated on the basis of the number of protons (atomic number) or the total number of nucleons (mass number) as given below: (i) Isotopes: The atoms of ele
Explain newtons cradle- A typical Newton's cradle consists of metal balls of identically sized in a series suspended in a metal frame ,so that they are just touching each other at
Elastic Collision Collisions among objects are governed through laws of momentum and energy. While a collision occurs in an isolated system, the whole momentum of the system of
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