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Suppose that the x rays are emitted from a focal spot isotropically. The photon flux is 3.28 x 106 photons mm-2 sec-1 at a distance of 0.75 m from the focal spot. What is the photon flux at a distance of 10 cm from the focal spot? Neglect the effects of air attenuation.
how psuedo force is valid?
The temperature of a gas is held constant whereas its volume is reduced. The pressure the gas exerts on the walls of its container enhances because its molecules: a) stri
Drake equation (F. Drake; 1961) A technique of estimating the number of intelligent, technological species (that means, able to communicate along with other species) in existe
Q. Name the types of photoelectric cells? The photo electric cells are of three kinds: A) Photo emissive cell B) Photo voltaic cell and C) Photo conductive cell.
explain biased parallel clipper
Define Atmospheric Energy - thermodynamics? The mass of the Earth's atmosphere, p(z), varies with height z above the Earth's surface. Assume that the "thickness" of the atmosp
The essential and sufficient condition for a SHM:-
why the least distance of distinct vision is 25 %
what is the concept behind solving question wedge block system if block i made to constrain . how to solve such question by using line of action of force
Two point changes q1 and q2 are placed at a distance r from one another then electrostatic potential energy of two phase charge system will be kq 1 q 2 /r . We take P.E. of two ch
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