List of top Physics Questions on Atoms and Nuclei asked in MHT CET

Which series of the Hydrogen spectrum lies in the visible region?

If an electron in hydrogen atom jumps from \(3^{\text{rd}}\) orbit to \(2^{\text{nd}}\) orbit it emits a photon of wavelength '\(\lambda\)'. When it emits a photon from \(4^{\text{th}}\) orbit to \(3^{\text{rd}}\) orbit then the corresponding wavelength of emitted photon will be

If an electron in a hydrogen atom jumps from an orbit of level $n=3$ to orbit of level $n=2$, then the emitted radiation frequency is (where $R=$ Rydberg's constant, $C=$ Velocity of light)

If an electron in hydrogen atom jumps from \(3^{\text{rd}}\) orbit to \(2^{\text{nd}}\) orbit it emits a photon of wavelength '\(\lambda\)'. When it emits a photon from \(4^{\text{th}}\) orbit to \(3^{\text{rd}}\) orbit then the corresponding wavelength of emitted photon will be