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Hawking temperature:
The temperature of a black hole caused through the emission of Hawking radiation. For a black hole along with mass m, it is following
T = (hbar c3)/(8 pi G k m).
As blackbody power emission is proportional to the area of the hole & the fourth power of its thermodynamic temperature, the emitted power scales like m-2 i.e. as the inverse square of the mass.
a spacecraft is moving relative to the earth. an observer finds that according to her clock 3601 seconds elapse between 1pm and 2pm on the spacecrafts clock. what is the spacecraft
The parachute on a race car that weighs 8750 N opens at the end of a quarter-mile run when the car is traveling 38 m/s. What net retarding force (magnitude) must be supplied by the
Two waves of equal frequency have amplitudes 2 units and 3 units respectively. When they superpose coherently the intensity of the resultant wave is I 1 . The intens
These are resistors with long term stability and close tolerances. These are used in measuring instruments. Wire wound resistors, produced with long term stabilities and with speci
while taking readings in a deflection magnetometer the deflection should be between 30 degree and 60 degree.why?
Advantages of high transmission voltage A) Decreases volume of conductor material: B) Enhance in transmission efficiency C) Reduces percentages line drop
what is the principle of particle detectors ?
How many types of fibers are there? There is truly only one fiber optic. The word "fiber optics" applies really to a stem of light physics dealing along with the properties of
faraday law of induction(differential and integral form)
The operation of a logic gate or circuit can be shown in a table which have all possible inputs and their corresponding output is known as the truth table. To write the truth table
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