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Physics Postmortem Series (Special Edition 2020 Intermediate l'art-1 1. A sheet of lead 5.00mm thick reduces the intensity of a beam of y-rays by a factor 0.4. Find hall value thickness of lead sheet which will reduce the intensity to half of its initial value. (IMP) 2. Calculate the energy (in MeV) released in the following fusion reaction: H+H He+n 3. The half-life of Sr is 9.70 hours. Find its decay constant (IMP) 4. Find the energy associated with the following reaction: (mass of W 1,00784) +N+ Heo+, H. What do negative sign indicate? See Solution Files for Best Solution of All Given Questions. * ADEMY I'E AHORE ...
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