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Eddington limit (Sir A. Eddington)
The theoretical limit on which the photon pressure would go above the gravitational attraction of light-emitting body. i.e., a body emitting radiation at greater than the Eddington restrictions would break up through its own photon pressure.
Schwarzschild radius The radius r of the event horizon for Schwarzschild black hole of mass m is provided through (in geometrized units) r = 2 m. In conventional units, r =
calculate the magnifying power of a simple microscope whose focal length is 6 cm and the distance of distinct vision of 25 cm
Demerits of Semiconductor Diode over Vacuum Diode (i) It can't withstand high reverse voltage (ii) It can't operate at fairly high temperatures.
An object is placed 25.0cm from a thin converging lens. A screen is positioned so that a sharp image of the object is seen on the screen. When the object is moved 4.0cm closer to t
In the figure below the closed curves A and B represent closed surfaces. What is the total flux by the closed surface A? Ans: In concurrence with Gauss's Law the net o
Determine the mass number of the element? A mass of 25.2 g of an element is known to contain 6.77x 10 23 atoms. What is the mass number of the element? I thought it would be
the use and working principle of thermoelectric thermometer
Who first theoretically predicted the existence of the positron, a positively charged electron? He received the Nobel Prize in Physics in 1933. Ans: (Paul Adrien M
Q. A Plano-convex lens of radius 3 m is placed on a flat glass plate and is illuminated by monochromatic light. The radius of the 8th dark ring is 3.6 mm. Calculate the wavelength
l question.. a particle rest on the top of a hemi spher radius R find the smallest horizondal velocity that must imparted to the particle if it''s to leave the hemi
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