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Q. Select the pairs of isotopes, isobars and isotones from the following nuclei:
11 Na 22, 12 Mg 24, 11 Na 24, 10 Ne 23
Isotopes are 11 Na 22 , 11 Na 24
Isobars are 12 Mg 24, 11 Na 24
Isotones are 11 Na 24, 10 Ne 23
A 2kg piece of copper at 200 o C is taken out of a furnace and is allowed to cool in air with an ambient temperature of 25 o C. Calculate the entropy change in the universe as a
a) It is a sort of disturbance which goes by a medium. b) Material phase is necessary for the propagation of mechanical waves. c) When a wave motion goes by a phase, molecule
With the help of a diagram, show the biasing of a light emitting diode (LED). Give its two benefits over conventional incandescent lamps.
(1) F or supplying power from on alternating current power grid to equipment which uses a different voltage. (2) Electrical power transmission over long dist
State the process of diffusion When these two pieces are joined together and suitably treated, they from a pn junction. Moment they form a pn junction, some of the
Q. Illustrate that soccer balls go faster in the air on a cold or hot day? Answer:- On a hot day the air molecules have additional kinetic energy they move around more fre
Assignment in fluid motion
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
DRAW A GRAPH OF DISTANCE VERSUS TAN
Find the electric field between the plates of a capacitor given the following:? (1) C= 10pF (2) the capacitor is connected to a 25 V battery (3) there is a vacuum between the capa
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