Chain reaction
Chain reaction is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2022). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
📅 Today's Daily Challenge
Five fresh MPSC questions, the same for everyone today — free, no signup.
Asked in
What you need to know first
What mastering this unlocks
Real questions that test this
शृंखला अभिक्रियेसाठी बिखंडन होणाऱ्या पदार्थांचे सीमांत वस्तुमान असणे का आवश्यक असते ?
(a)बिखंडन होणाऱ्या पदार्थांच्या पृष्ठभागावरुन न्यूट्रॉन निसटून जाण्यासाठी
(b)बिखंडन होणाऱ्या पदार्थांच्या पृष्ठभागावरुन न्यूट्रॉन वेगवेगळ्या दिशेने फेकले जाण्यासाठी
(c)न्यूट्रॉन पकडले जाऊन शृंखला अभिक्रिया सुरू होऊन चालु रहाण्यासाठी
(d)बिखंडन होणाऱ्या पदार्थांच्या पृष्ठभागावरुन न्यूट्रॉन परावर्तित होण्यासाठी
Critical mass is necessary so that enough neutrons are captured within the fissionable material to sustain the chain reaction rather than escaping from the surface.
खालील परिकल्पित अभिक्रिया पूर्ण करा : 235 92 U + 1 0 n -> x 54 Xe + y 38 Sr + 4 1 0 n
(a)x = 141, y = 91
(b)x = 139, y = 93
(c)x = 141, y = 93
(d)x = 139, y = 95
In nuclear fission of Uranium-235 bombarded by a neutron, mass numbers and atomic numbers must balance. Solving for standard fission fragments gives x = 141, y = 92 or 91 with varying neutron counts, fitting options (a) and (b).