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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.
what is magnetic flux density of cylinder??
Q. Define: ionisation potential? The ionisation potential is that increase speed potential which makes the impinging electron acquires sufficient energy to knock out an electro
Doppler effect (C.J. Doppler) Waves emitted through a moving object as attained by an observer will be blueshifted (compressed) if approaching, redshifted (elongated) if reced
Q. Define: binding energy. The energy equal of mass defect is called as binding energy. ∴ Binding energy = [Zm P + Nm n - m] c 2 = Δm c 2 . Here, Δm is the mass defe
A sodium cation has different number of electrons from: (1) O 2- (2) F - (3) Li + (4) Al +3 Ans: Li +
A thermal imager is used to measure the temperature of a target surface (ε = 1) in the test section of a wind tunnel. The thermal imager must view the target though a window. The t
A circuit having of a 10μF capacitor connected in series with a 25 k resistor with a switchable 100V d.c. supply. When the supply is connected, calculate (a) The time constant,
stop watch + least count+ picture of stop watch
An airplane traveling at v = 187 m/s emits a sound of frequency 5.80 kHz. At what frequency does a stationary listener hear the sound during each of the following times? (Use344
Di - Electric: The insulator used among the plates of a capacitor is known as Di-electric.
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