TG EAPCET 2025 (Online) 2nd May Morning Shift | Atoms and Nuclei Question 19 | Physics

If the difference in the frequencies of the first and second lines of Lyman series of hydrogen atom is $f$, then the difference in frequencies of the first and second lines of Balmer series of hydrogen atom is

$\frac{3 f}{4}$

$f$

$\frac{7 f}{20}$

$\frac{9 f}{16}$

TG EAPCET 2025 (Online) 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

The average energy of a neutron produced in the fission of ${ }_{92}^{235} \mathrm{U}$ is

$160 \times 10^{-13} \mathrm{~J}$

$320 \times 10^{-15} \mathrm{~J}$

$320 \times 10^{-13} \mathrm{~J}$

$160 \times 10^{-15} \mathrm{~J}$

TG EAPCET 2025 (Online) 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

If $96.875 \%$ of a radioactive substance decays in 10 days, then the half life of the substance is (in days)

TG EAPCET 2024 (Online) 11th May Morning Shift

MCQ (Single Correct Answer)

-0

In hydrogen atom, the frequency of the photon emitted when an electron jumps from second orbit to first orbit is $f$. The frequency of the photon emitted when an electron jumps from third excited state to first excited state is

$\frac{f}{2}$

$\frac{f}{4}$

$\frac{f}{8}$

$f$

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