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How long can an electric lamp of 100W be...

How long can an electric lamp of 100W be kwpt glowing by fusion of 2.0 kg of deuterium ? Take fusion reaction as `._(1)^(2)H+._(1)^(2)Hto ._(2)^(3)He+n+3.27 MeV`

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About `4.9 xx 10^4 y`
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Calculate the Q - value for the reaction , ""_(1)H^(2)(d,n)_(2)He^3

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A lamp delivers a luminous flux of 100 w to an absorber of area 1 cm^(2) . The force due to radiation pressure is

1-(3)/(1!)+(9)/(2!)-(27)/(3!)+....=