What is speed of sound at sea level?
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Explain how do you convert from pascal to torr?
Who determined that the square of a planets period is proportional to the cube of its average distance from the sun?
Why the height of the mercury column is affected by the change in temperature ?
What is Amorphous ?
Explain reflection of light?
What is Translucent body ?
What is time?
What is a Compound ?
Explain about Dispension of Light ?
When a glass cylinder is filled with water and a piece of thick paper is placed at the mouth and the cylinder is inverted, the paper dies not fall. Why ?
According to coulombs law, if two charged particles are repelled with a given force at a distance d, by what multiple will the force decrease by if d is increased by 4times?