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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.
Coriolis pseudoforce (G. de Coriolis; 1835) A pseudoforce that arises due to motion relatively a frame which itself rotating relatively second, inertial frame. The magnitude o
Capacitor have thin conducting plates (usually made of metal) separated by a layer of dielectric, then stacked or rolled to form a compact device. Many types of capacitors are avai
The resultant of two forces 3P and 2P is R. If the first force is doubled then the resultant is also doubled. then the angle between the two forces us. plz xplain with the solution
How is a wave front dissimilar from a ray ? Draw the geometrical, shape of the wave fronts when (i) light diverges from a point source, and (ii) light emerges out of a convex le
Demerits of Vacuum Diode over Semiconductor Diode (i) Bigger in size (ii) Less efficiency (iii) Expensive
Regard as a positively charged particle in a circuit. As it moves during a resistor in the circuit the positively charged particle moves from a point one end of the resistor in the
For the system shown below the gain, G, of block A is variable and can be set as low as 100 and as high as 500. The only problem with block A is that its gain fluctuates with high
Calculate the current needed in a 240 mm length of conductor of a d.c. motor when the conductor is situated at right-angles to the magnetic field of flux density 1.25T, if a force
why are vector and scalar necessary in our everyday activities?
Q. Illustrate about Optical Memories? In 1983 one of the most successful consumer products of all times was introduced which is compact disk (CD) digital audio system. This CD
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