jee_main_2026_22_january_morning - Atoms and Nuclei Topics

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QUESTION #27 Nuclear Size and Distance of Closest Approach
7.9 MeV alpha-particle scatters from a target material of atomic number 79. From the given data the estimated diameter of nuclei of the target material is (approximately) \_\_\_\_ m. left[frac14pi epsilon_0 = 9 times 10^9 mathrmNm^2 / mathrmC^2 text and electron charge = 1.6 times 10^-19 mathrmCright]
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QUESTION #36 Nuclear Binding Energy
The minimum frequency of photon required to break a particle of mass 15.348 amu into 4alpha particles is \_\_\_\_ kHz. [mass of He nucleus = 4.002 amu, 1 amu = 1.66 times 10^-27 kg, h = 6.6 times 10^-34 J.s and c = 3 times 10^8 m/s]
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
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