Published by:
CGP EDU Academic Team
Published on: September 12, 2026
When neutrons are bombarded on nucleus of 
, the number of emitted neutrons will be
Text Solution
Verified by ExpertsThe correct answer is:
B
Step 1: Identify the initial nucleus involved, which is \( _{92}^{235}U \).
Step 2: When bombarding uranium-235 with neutrons, it can undergo fission. In this process, the uranium nucleus splits into two smaller nuclei, along with the emission of several neutrons.
Step 3: The typical fission reaction of uranium-235 yields approximately 2-3 neutrons per reaction.
Step 4: Therefore, if we consider an average of 2 neutrons emitted per fission event, option B (2) is reasonably accurate for a single fission event, which is commonly referenced in nuclear physics.
Therefore, the answer is B.
Step 2: When bombarding uranium-235 with neutrons, it can undergo fission. In this process, the uranium nucleus splits into two smaller nuclei, along with the emission of several neutrons.
Step 3: The typical fission reaction of uranium-235 yields approximately 2-3 neutrons per reaction.
Step 4: Therefore, if we consider an average of 2 neutrons emitted per fission event, option B (2) is reasonably accurate for a single fission event, which is commonly referenced in nuclear physics.
Therefore, the answer is B.
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