The process of splitting a heavy atomic nucleus into two lighter nuclei of comparable masses is known as:
A. Nuclear fission
B. Isotope formation
C. Nuclear fusion
D. Radioactive decay
Answer: Option A
Solution (By JKSSB Mock Tests)
Nuclear fission is the process where a heavy, unstable nucleus (like Uranium-235) is split into two smaller, stable nuclei when bombarded with a neutron. This process releases a massive amount of energy and more neutrons, triggering a chain reaction. Nuclear fusion is the opposite process (combining light nuclei).
Explanation:
Acceleration a = dv/dt = d(3t² + 2t)/dt = 6t + 2. At t = 2 s: a = 6(2) + 2 = 14 m/s². Differentiation of velocity gives instantaneous acceleration. Memory tip: a = dv/dt; for polynomial v(t), differentiate term by term. Tests calculus application in kinematics, common in advanced competitive exam questions.
Explanation:
1 amu = 1.6605 × 10⁻²⁷ kg, using E=mc² gives about 931.5 MeV. Used in nuclear binding energy calculations. Not eV, but MeV. Very large energy per nucleon.
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