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Ehrenfest paradox (Ehernfest, 1909)
The special relativistic "paradox" including a quickly rotating disc. As any radial segment of the disc is perpendicular to the direction of motion, there must be no length contraction of the radius; though, since the circumference of the disc is parallel to the direction of motion, it has to contract.
Refractive Index: The ratio of sine of angle of incidence to the sine of angle of refraction is constant for all rays passing single medium to another medium. This constant is
a ball is dropped from a bridge 122.5m high. after the ball has been falling for2 sec another is thrown straight downwards after it. the initial velocity of the ball is such that
Tiger Woods can hit a golf ball with 55 N of force. How hard does the ball hit back on the club? (a) more than 55 N of force, (b) less than 55 N of force, (c) exactly 55 N of force
With mans lust for the unknown in space exploration, what will happen to our planet by removing so much weight in the form of spacecraft that will never return and can the earth re
Where is the magnetic field because of a bar magnet strongest? Answer: This is just an experimental reality.
Q. Explain any one of the drawbacks of Rutherford atom model. As-per to the classical electromagnetic theory the accelerating electron must radiate energy at a frequency propo
It is based on the principle that conductivity of a semiconductor enhances with increase in the intensity of incident light. In this, a thin layer of some semiconductor (as
#quest. Imagine a small observer is positioned in front of the cork in your picture above. As the cork approaches, the observer measures the wavelength of the waves passing by. How
Suppose that the Sun runs out of nuclear fuel and suddenly collapses to form a white dwarf star, with a diameter equal to that of the Earth. Assuming no mass loss, what would then
A light is evaluated by a rotating Nicol showed no variation of intensity. Determine the state of polarization?
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