Some
crystals exhibit birefringence on application of electric field. This is known
as Pockels effect.
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Tuesday 18 December 2012
Actual values of constants
Velocity of light = 2.99792 × 108
m/s
Electron mass = 9.1095 × 10-31 kg
Electron
charge = 1.602 × 10-19 C
Monday 10 December 2012
Tuesday 20 November 2012
Turbomachine
Turbomachine is a rotary type
device using which energy transfer is brought about by dynamic action without
an impervious boundary that prevents the free flow of a liquid at any time.
Monday 5 November 2012
MERCATOR
Mercator is used for navigation
for maps of equatorial regions. Transverse mercator is used for mapping large
areas in north-south. Oblique mercator is used to show regions along a great
circle other than the equator or a meridian.
Tuesday 30 October 2012
TUNGSTITE
Tungstite is a powdery and earthy mineral. Its colour is
yellowish green or bright yellow. It is soluble in alkaline solutions and not
soluble in acidic solutions.
Sunday 21 October 2012
MICROWAVES
Microwaves are electromagnetic waves of wavelengths ranging from 30 cm to 0.3mm. Frequency range is 109Hz
to 1012Hz.
Tuesday 16 October 2012
INTERFERENCE
The superposition of two or more light waves and redistribution of energies is termed as interference of light.
Thursday 11 October 2012
LASER
Laser(Light Amplification by Stimulated Emission of Radiation) is a light source which gives highly directional, coherent, monochromatic, intense light.
Wednesday 10 October 2012
ULTRASONICS
Ultrasonics
are sound waves with frequency greater than that of human audibility limit,
20KHz.
Tuesday 9 October 2012
PERIGEE
Perigee-The point in a satellite's elliptical orbit that is closest to the earth, and at which the satellite's velocity is greatest.
FRACTAL
Fractal-a geometric shape that repeats itself, at least roughly, at all scales. Fractals are used for the complex modelling of clouds and other natural shapes.
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