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- what is liquid crystal display
- What is Doppler Effect ? ? ?
LCD stands for Liquid Crystal Display. It works on the principles of polarization. By the selective alignment of liquid crystals light is blocked or allowed making the display transparent.
Anoop Krishna Asked:
WHAT ARE THE ADVERSE EFFECT OF GAMMA RAY OUTBURST FROM HYPERNOVA?
Many people are uncomfortable watching 3D Movies in Theaters because of the glasses. Many get severe headaches. Tilting one’s head while watching polarized 3D will negate the effect so sore necks often happen while watching.
How can we rectify this problem ?
A spaceship is launched and starts moving directly towards the Moon. At what distance from the earth will the pull of the Moon on the spaceship exceed the pll of the Earth? Ignore the effect of the sun in this calculation
“What is the effect on centre of mass of system of particles when it is placed in accelerated train?” Vimal asked
Vimal asked this question.
Impulse is the effect of a force and is measured as the change in momentum produced.
The same effect, that is the same change in momentum can be produced by a large force acting for a short interval of time, a small force acting for a large interval of time or a moderate force acting for a moderate interval of time.
In all these cases the impulse will be the same as the change in momentum will be the same.
What is diamagnetism? (Shan asked)
Diamagnetism is the property of an object which causes it to create a magnetic field in opposition to an externally applied magnetic field, thus causing a repulsive effect. (Wikipedia)
Please refer to the following links for further details.