Bihar Board Class 12 (Science) Atoms — practice questions
8 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Bihar Board Class 12 (Science) Atoms in the app →Bohr's postulate quantises the angular momentum of an electron in a stationary orbit asWhich spectral series of hydrogen lies in the visible region of the electromagnetic spectrum?The minimum wavelength $\lambda_{\min}$ in the continuous X-ray spectrum of an X-ray tube depends only onThe ratio of the longest wavelength in the Lyman series to the longest wavelength in the Balmer series of hydrThe radius of the $n$th Bohr orbit in a hydrogen-like atom of nuclear charge $Z$ scales asThe de Broglie wavelength $\lambda$ of an electron in the $n$th Bohr orbit of hydrogen, in terms of the orbit Bohr's quantisation condition for the angular momentum $L$ of an electron in the $n^\text{th}$ orbit isThe ratio of the first excitation energy of a hydrogen atom ($E_2 - E_1$) to its ionisation energy from the gr