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Q. What are non-polar molecules? Give an example.
i) A non-polar molecule is one in that the centre of gravity of the positive charges coincides with the centre of gravity of the negative charges.
ii) Instance O2, N2, H2.
iii) The non-polar molecules don't have a permanent dipole moment.
Give a mathematical expression for linear width of principal maxima in case of single slit Fraunhofer diffraction.
A 415V 3-phase a.c. motor has a power output of 12.75kW and operates at a power factor of 0.77 lagging and with an ef?ciency of 85%. If the motor is delta-connected, verify
Action and reaction in a bolt Step from a free row boat to land and view that the boat moves in the opposite direction.
Magnetic force on a moving charge Oersted also discovered that anytime a charge is moving in an area where a magnetic field exists, it experiences a force which is sometimes call
a car tyre is pumped up to 230 kPa. What is the volume of air at atmospheric pressure (100kPa) that must be pumped into a tyre that has a volume of 0.1 cubic meter?
calculate the amplitude of wave of y= (0.045m) sin x (5.2t+4.0x)
Must all illuminator have forced ventilation? Usually yes, the exception being which with a massive construction that dissipate heat by transfer or radiation.
when a billard ball hits another billarid ball then other ball is maving but striking ball also move some distance why
a=The set of whole numbers less than 4
The minimum real charge on any particle which can exist is: (1)1.6x 10 -19 coulomb (2) 1.6x 10 -10 coulomb (3)4.8 x 10 -10 coulomb (4)Zero Ans: (1)1.6x 10 -19 c
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