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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.
Advantages of A.C. transmission of power 1. The power can be produced at high voltages. 2. The maintenance of a.c. sub-stations is simple and cheaper. 3. The a.c. voltage
(i) On the average, particles are separated by a distance of the order of 10-10 m and exert a force of attraction of the order of 10-11 N on each other. (ii) The force of atta
Passing Lane velocity vs time graph Suppose the two cars below. The blue car begins ahead of" the red car. The red car actually begins off the screen.) Because the red car is
Q. Explain the Law of Machines? Answer:- Machines which are utilized to lift a load are governed by the Law of machines which states that the effort to be applied on the m
An electron is constrained to the central perpendicular axis of a ring of charge of radius 2.2 m and charge 0.015 mC. See Section 22-6. Suppose the electron is released from rest a
A beam of white light is passed through a diffraction grating and the resulting spectrum is allowed to fall on a screen. Which color of light that undergoes the greatest devi
A projectile is launched from zero height with an initial angle, θ, above the horizontal and with an initial velocity, vi. a. Show that the range of the projectile the distance
Draw a labelled diagram of a moving coil galvanometer. Verify the principle on which it works. Reduce an expression for the torque acting on a rectangular current carrying loop kep
Q. A small telescope has an objective lens of focal length 144cm and an eyepiece of focal length 6.0cm.What is the magnifying power of the telescope? What is the separation between
If W is atomic weight and N is the atomic number of an element, then: (1) Number of e -1 = W- N (2) Number of 0 n 1 = W- N (3) Number of 1 H 1 = W-N (4) Number of 0
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