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lumen; lm:
The derived SI unit of luminous flux, described as the luminous flux emitted through a uniform point source of 1 cd emitting its luminous energy on a solid angle of 1 sr; thus it has units of cd sr.
Q. Jingdan turned a screwdriver into a magnet by rubbing it with a strong bar magnet to pick up a screw that has fallen into an inaccessible spot. How could he demagnetize his
Explanation construction and working of Nicol prism?
Bending moment : The diagram in created shear forces, but the applied forces also create bending. Consider a section x x' at a distance x measured from end B. Then R B
if a body contain n1 electron and n2 proton what is the total charge on the body?
what is anti reflection coating ?
Q. What are coherent sources? Two sources are alleged to be coherent if they emit light waves of the same wave length and start with same phase or have a constant phase differ
Q. Illustrate what is ntu in thermodynamics? Answer:- The ntu is nothing but number of transfer units it is one of the method utilized to find the heat transfer of hot and
Determine voltage gain for the circuit shown in figure below, with R F = 100K ? and R 1 =10 K? Ans. Determination of voltage gain: The provided operational
Compton effect (A.H. Compton; 1923) An effect which demonstrates that photons (the quantum of electromagnetic radiation) contains momentum. At a stationary particle, a photon
what is screw gauge...? what is the use of screw guage...? how make a screw gauge...? what is name of sentince of screw gauge...?
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