How long can an electric lamp of 100 W be kept glowing by fusion of 2 kg of deuterium? Take the fusion reaction as

CBSE Sample Question Paper, Class 12 Physics Term 2 Question - How long can an electric lamp of 100 W be kept glowing by fusion of 2 kg of deuterium? Take the fusion reaction as

How long can an electric lamp of 100 W be kept glowing by fusion of 2 kg of deuterium? Take the fusion reaction as

ANS 6 Number of atoms present in 2 g of deuterium = 6 × 10ଶଷ
Number of atoms present in 2.0 Kg of deuterium = 6 × 10ଶ଺
Energy released in fusion of 2 deuterium atoms
= 3.27 MeV Energy released in fusion of 2.0 Kg of deuterium atoms