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Uniformity principle (E.P. Hubble):
The principle that the laws of physics here & now are not distinct, at least qualitatively, from the laws of physics in previous or future epochs of time, or elsewhere into the Universe. This principle was scoffed at through the ancients who supposed that the laws that governed the Earth & those that governed the heavens were totally divorced; now it is utilized routinely in cosmology to define the structure & evolution of the Universe.
A=2i+3j+k B=3i+2j+4k Find:1)A.B=? 2)A+B=?
In physics, a radian per second is a unit of: a) Angular displacement b) Angular velocity c) Angular acceleration d) Angular momentum. Ans: A radian per
How do i find the freefall of an object?
Meissner effect (W. Meissner; 1933): The reduction of the magnetic flux in a superconducting metal while it is cooled below the transition temperature. i.e., superconducting m
Why is it that the frequency of light remains the constant as it undergoes refraction at the interface of two material mediums? Ans) If frequencies are dissimilar in different m
Define the Ray Diagrams for Lenses When drawing ray diagrams for thin lenses, we can assume that the lens is infinitely thin. Instead of considering refractions at each surface o
Tungsten: Atomic number 74 Symbol W Atomic weight 183.85 Discovery Purified Tungste
Fizeau method (A. Fizeau, 1851): One of the first really relativistic experiments intended to calculate the speed of light. Light is flow through a spinning cogwheel driven th
Why rotation of rigid bodies through finite angles not a vector? Ans) Because it does not obey one of the laws of vector algebra(law of commutativity).
what is the unit of torque
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