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lumeniferous aether:
A substance, that filled all the empty spaces among matter, which was utilized to describe what medium light was "waving" in. it now has been discredited, as Maxwell's equations imply that electromagnetic radiation can propagate into a vacuum, as they are disturbances in the electromagnetic field instead of traditional waves in some substance, like water waves.
Derive the mathematical expression for refractive index in terms of the angle of the prism and angle of minimum deviation.
a) A charge Q is placed at the centre of a cube. determine the flux of the electric field through the six surfaces of the cube. b) Determine the magnitude of the electric field
1. There are 40 such microwave hops in tandem. What is the end-to-end C/N of the link? 2. Assume now that these 40 hops are replaced by a single satellite hop as shown below.
Making an observation nest for ants An observation nest for the study of the life story of ants can simply be made as follows. Make a wooden U from three 30 cm lengths of w
Show the conditions for total internal reflection to happen. Arrive at the relation between refractive index and critical angle. What do you mean by optical fibre? on what rules do
Q. Why does the sky appear blue in colour? As-per to the Rayleigh's scattering law the shorter wavelengths are scattered much more than the longer wavelengths. The blue look o
why the reflective index of cladding is lower then in core of a fiber optic?
What seven colors appear to be white when mixed together? a) Red, b) orange, c) yellow, d) green, e) blue, f) indigo and g) violet. Though with the human e
Electric current may be expressed in which one of the following units? a) coulombs/volt b) joules/coulomb c) coulombs/second d)
Q. Define: 1 amu One atomic mass unit is thinks as one twelfth of the mass of carbon atom 6 C 12 . 1 amu = 1.66 X 10 -27 kg. Q. Define: mass defect. The dissimi
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