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The number of electrons in one molecule of are:
(1)22
(2)44
(3)66
(4)88
Ans: 22
Prism: A transparent refractive device having of three rectangular and two refractive surfaces is known as prism. N = Sin (A + Dm) /2 Sin A/2 Where a is
The idea that everything is made up of very small particles has been developed over many years supported by several experiments: (i) Brownian motion :
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estimation of nuclear fusion on basis of liquid drop model
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