Explain what is the ray of light?
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Explain the law of machines?
Why ate the mirage effects produced over hot deserts ?
At what temperature does the filament of electric bulb glows ?
You want to magnetize a metal. How would you do that?
What is Amphoteric ?
The magnitude of electrostatic force between two identical positive ions that are separated by a distance of 5.0 x 10– 10 m is 3.7 x 10–9 N. (a) What is the charge of each ion? (b) How many electrons are “missing” from each ion?
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Describe and interpret qualitatively the evidence provided by electron diffraction for the wave nature of particles. : quantum physics
what are the Newtons principles? what is mean by gravitational force? what is mean by space technology? what is the use in space technology?
What is Chemical mixture ?
Explain the Reflection ?
Why dies starch stiffen the clothes ?
Does sunlight reflected off a mirror increase the temperature of the sun-rays?