Inactive Nitrogen and Argon gases are usually used in electric bulbs in order to
A liquid of density ρ is rotating in a cylindrical vessel with constant angular velocity ω. The free surface of the liquid takes the shape of:
Which gas is responsible for the ozone layer's depletion?
Which of the following is a process in which water from any source change into vapour state ‘due to heat’?
1 mole of carbon atoms = ______ g of carbon atoms
Which compound reacts with sodium metal to release hydrogen gas?
The most of the mass of an atom can be found in
At what temperature a body will not radiate any heat energy?
What is the focal length of a double convex lens for which the radius of curvature of each surface is 30 cm and the refractive index of glass is 2.50 ?
Glycol is used to manufacture which of the following?
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