COMEDK 2025 Evening Shift | Atoms and Nuclei Question 4 | Physics

Radium having mass number 200 and binding energy per nucleon 5.6 MeV , splits into two fragments Cadmium of mass number 112 and Hassium of mass number 108. If the binding energy per nucleon for Cadmium and Hassium is approximately 8.0 MeV , then the energy $Q$ released per fission will be:

598 MeV

176 MeV

640 MeV

475 MeV

COMEDK 2025 Evening Shift

MCQ (Single Correct Answer)

-0

Select the correct statement from the following:

Nuclear force is a long range force

Nuclear force is the weakest force in nature

Nuclear force is a non central force

Nuclear force depends on the charge of the nucleons

COMEDK 2025 Evening Shift

MCQ (Single Correct Answer)

-0

When ${ }^{10} \mathrm{~B}_5$ nuclei are bombarded by neutrons, one of the resultant nuclei is ${ }^7 \mathrm{Li}_3$. Then the emitted particle will be:

Alpha particle

Neutrons

Gamma particle

Beta particle

COMEDK 2025 Afternoon Shift

MCQ (Single Correct Answer)

-0

What is the frequency ' $\nu$ ' of the electron in Bohr's first orbit of radius ' $r$ ' of the hydrogen atom?

$v=\frac{e^2}{4 \pi \varepsilon_0 h r}$

$v=\frac{e^2}{2 \pi \varepsilon_0 h r^2}$

$v=\frac{e^2}{4 \pi \varepsilon_0 h r^2}$

$v=\frac{e^2}{2 \pi \varepsilon_0 h r}$

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