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Q. What are polar molecules? Give an example.
i) A polar molecule is one in that the centre of gravity of the positive charges is separated from the centre of gravity of the negative charges by a finite distance.
ii) Instance: N2O, H2O, HCl, NH3.
iii) They have an eternal dipole moment.
How will you determine the difference in the wavelengths of 2D lines of sodium light buy Michelson Interferometer
how does expansion occur
The v-t graph of a car is shown in the accompanying figure. What is the displacement of the car from t = 0.00 s to t = 15.0 s?
AVERAGE VELOCITY: The ratio of the total displacement to the total time taken by the body is known as average velocity and represented by V ?av.
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Light with a frequency of 7.5 x 10 14 Hz is able to eject electrons from the metal surface of a photocell that has a threshold frequency of 5.2 x 10 14 Hz. What stopping potentia
a) The molar mass of air is 28.97 kg/kmol and the universal gas constant is 8.314 kJ/(kmolK). Show by calculation that the particular gas constant of air is around 0.287 kJ/(kgK)
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Explain Gauss's law in electrostatics? 1C of charge is same to the charge of n number of electrons in magnitude. What is the value of n? What happens to the force between t
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